pmev8 manual admin

PostMaster Enterprise Manual For Administrators i

PostMaster Enterprise TM v 8.xx

Manual For Administrators

QuantumLink Communications Pvt Ltd

208 Shreepal Complex, Suren Road

Andheri East, Mumbai 400093 India

Tel : +91-22-4095-7700

Fax : +91-22-4095-7799

Web : www.qlc.in

PostMaster Enterprise Manual For Administrators i i

Copyright Notice

Copyright 2012 by QuantumLink Communications Pvt. Ltd.

All Rights Reserved.

This manual may not be dupl icated in any way without the expl i cit consent

of QuantumLink Communications Pvt. Ltd., except in form of excerpts for

purpose of review. Making copies of this manual or any portion of this

manual for any purpose other than your own is violation of copyright laws.

While every precaution has been taken in preparation of this manual,

QuantumLink Communications Pvt. Ltd. assumes no responsibi l i ty for

errors and omissions or for damages resulting from the use of the

information contained herein.

Al l product names, brand names and trademarks appearing in this manual

are acknowledged.

Print History

First Edit ion January 2012

PostMaster Enterprise Manual For Administrators i i i

Table of Contents

POSTMASTER ENTERPRISE TM V 8.XX MANUAL FOR ADMINISTRATORS _______ I

1. CONVENTIONS ______________________________________ 1-1

2. GETTING STARTED ___________________________________ 2-2

About this Manual .......................................................... 2-3

System Requirements ..................................................... 2-4

Instal l ing PostMaster Enterprise ..................................... 2-7

Upgrading to the Latest Version ........................................ 2-8

Activating the License ..................................................... 2-9

The KYC Screen ........................................................... 2-10

How PostMaster Enterprise Components Work .................... 2-11

How PME-Mai l Works --------------------------------------------------- 2-12

How PME-Web Works --------------------------------------------------- 2-13

How Ant iVirus For PME-Mai l Works ------------------------------------ 2-14

How Ant iSpam For PME-Mai l Works ------------------------------------ 2-16

Features of PostMaster Enterprise ................................. 2-19

Features of PostMaster Enterpr ise - Common ----------------------- 2-20

Features of PostMaster Enterpr ise - Mai l ---------------------------- 2-24

Features of PostMaster Enterpr ise - PME-Web ---------------------- 2-31

Features of PostMaster Enterpr ise - PME-Calendar ----------------- 2-34

Features of PME - Ant iVi rus for PME-Mai l ----------------------------- 2-36

Features of PME - Ant iSpam for PME-Mai l ----------------------------- 2-38

Features of PME - WebMai l --------------------------------------------- 2-41

Features of PostMaster Enterpr ise T M - Forums ------------------------ 2-43

Starting PostMaster Enterprise ..................................... 2-44

Configuring PostMaster Enterprise using the Startup Wizard2-45

Understanding the Console............................................. 2-48

The Module Sect ion ---------------------------------------------------- 2-49

The Mai l Spools Sect ion ------------------------------------------------ 2-56

The Mai l Transfer Sect ion ---------------------------------------------- 2-57

The Bottom Pane ------------------------------------------------------- 2-58

Minimiz ing PostMaster Enterpr ise Console -------------------------- 2-64

Logging in to PostMaster Enterprise ............................... 2-65

The PostMaster Enterprise Home Page ............................ 2-67

The PostMaster Enterprise - WebAdmin Console Page ....... 2-70

Options ----------------------------------------------------------------- 2-74

The PostMaster Enterprise Screen Elements .................... 2-80

The PostMaster Enterprise WebMail Interface .................. 2-82

PostMaster Enterprise Manual For Administrators iv

CHAPTER 1: MANAGE SERVERS ______________________________ 2-84

1. CORE SERVERS ____________________________________ 2-87

1.1 HTTP Service........................................................ 2-88

1.2 HTTPS Service ...................................................... 2-93

1.3 FTP Service ......................................................... 2-98

1.4 FTPS Service ...................................................... 2-107

1.5 LDAP Service ..................................................... 2-113

1.6 LDAPS Service .................................................... 2-121

2. MAIL SERVERS ___________________________________ 2-127

2.1 SMTP Server ...................................................... 2-128

2.2 SMTPS Server .................................................... 2-140

2.3 POP3 Service ..................................................... 2-145

2.4 POP3S Service .................................................... 2-151

2.5 IMAP Server ....................................................... 2-156

2.6 IMAPS Server ..................................................... 2-163

3. WEB __________________________________________ 3-167

3.1 HTTP Proxy Service ............................................. 3-168

3.2 FTP Proxy Service ............................................... 3-178

3.3 SOCKS Proxy Service ........................................... 3-184

3.4 RAV Proxy Service ............................................... 3-190

4. OTHERS ________________________________________ 4-196

4.1 AUM Server ....................................................... 4-197

4.2 SyncBook Server ................................................. 4-204

4.3 QuickMsg Server ................................................. 4-207

CHAPTER 2: MANAGE ACCOUNTS ____________________________ 4-215

5. CONFIGURE ______________________________________ 5-216

5.1 Canonical .......................................................... 5-217

5.2 User Sync .......................................................... 5-221

5.3 GAB Sync .......................................................... 5-227

6. GROUPS ________________________________________ 6-231

6.1 Group Manager ................................................... 6-232

7. USERS _________________________________________ 7-243

7.1 User Manager ..................................................... 7-244

PostMaster Enterprise Manual For Administrators v

7.2 Uti l ization ......................................................... 7-280

8. ALIAS _________________________________________ 8-281

8.1 Alias ................................................................ 8-282

8.2 All Users Al ias .................................................... 8-288

8.3 Domain Al ias ...................................................... 8-293

9. CROSS REF ______________________________________ 9-296

9.1 Email Mapping .................................................... 9-297

9.2 Email In Forwarding ............................................ 9-299

9.3 Email Out Forwarding .......................................... 9-300

9.4 User Ids ............................................................ 9-301

10. RULE CONTROL __________________________________ 10-302

10.1 User Rule Manager ............................................. 10-303

10.2 Group Rule Manager ........................................... 10-305

10.3 User Group Manager ........................................... 10-307

11. SCHEDULER _____________________________________ 11-308

11.1 User Sync ......................................................... 11-309

11.2 GAB Sync ......................................................... 11-311

11.3 Mobi Sync ........................................................ 11-313

CHAPTER 3: CORE SETTINGS _____________________________ 11-315

12. CONFIGURE _____________________________________ 12-316

12.1 Log Settings ..................................................... 12-317

12.2 Friendly IPs ...................................................... 12-321

12.3 Password Pol icy ................................................. 12-323

12.4 Paths ............................................................... 12-329

13. ACCESS CONTROL ________________________________ 13-331

13.1 Global Access .................................................... 13-332

13.2 Core Servers ..................................................... 13-334

13.3 PME-Mai l Servers ............................................... 13-337

13.4 PME-Web Servers ............................................... 13-340

13.5 Other Servers ................................................... 13-343

14. CERTIFICATE ____________________________________ 14-346

14.1 Generated Certi ficate .......................................... 14-347

14.2 Trusted Certi ficate ............................................. 14-350

PostMaster Enterprise Manual For Administrators vi

15. SCHEDULER _____________________________________ 15-352

15.1 Config Backup ................................................... 15-353

15.2 Ext Config Backup .............................................. 15-356

15.3 Self Diagnostic .................................................. 15-359

15.4 Uti l ization ........................................................ 15-362

15.5 Upgrade ........................................................... 15-364

15.6 Free Space ....................................................... 15-367

15.7 ShutDown ......................................................... 15-370

15.8 Task List .......................................................... 15-372

16. TOOLS ________________________________________ 16-375

16.1 Login Message ................................................... 16-376

16.2 In the News ...................................................... 16-378

16.3 Standard .......................................................... 16-379

16.4 Company .......................................................... 16-381

16.5 Skins ............................................................... 16-382

16.6 Logo ................................................................ 16-383

16.7 Banner............................................................. 16-385

16.8 Signature ......................................................... 16-387

16.9 Dictionary ........................................................ 16-390

16.10 Fonts ........................................................... 16-392

17. LOGS _________________________________________ 17-394

17.1 Logs ................................................................ 17-395

17.2 Report ............................................................. 17-398

17.3 MIS ................................................................. 17-400

CHAPTER 4: MAILS ____________________________________ 17-402

18. CONFIGURE _____________________________________ 18-403

18.1 Domains ......................................................... 18-403

18.2 Mail Transfer ..................................................... 18-411

18.3 Robot Service .................................................... 18-414

18.4 Delivery Noti fy .................................................. 18-420

19. ADVANCED _____________________________________ 18-425

19.1 Address Book .................................................... 18-426

19.2 BCC Discovery ................................................... 18-428

PostMaster Enterprise Manual For Administrators vii

19.3 Handle Corrupt Mai l ............................................ 18-429

19.4 Auto Correct Mai ls .............................................. 18-430

20. OUTGOING _____________________________________ 20-432

20.1 Mode ............................................................... 20-433

20.2 Primary ............................................................ 20-439

20.3 Secondary ........................................................ 20-443

20.4 Direct .............................................................. 20-447

20.5 Rules ............................................................... 20-449

21. INCOMING _____________________________________ 20-451

21.1 POP3 Accounts .................................................. 20-452

21.2 Rules ............................................................... 20-460

22. REMOTE _______________________________________ 22-462

22.1 Gateway ........................................................... 22-463

22.2 SMS ................................................................ 22-468

23. ARCHIVING _____________________________________ 23-472

23.1 Global Archive ................................................... 23-474

23.2 Flexi Archive ..................................................... 23-477

23.3 Fi le Based Archive .............................................. 23-480

24. MODERATION ___________________________________ 24-482

24.1 Settings ........................................................... 24-484

24.2 Rules ............................................................... 24-487

25. SECURITY ______________________________________ 25-491

25.1 RBL Settings ..................................................... 25-492

25.2 SMTP Sender Block ............................................. 25-496

25.3 SMTP Rcpt Block ................................................ 25-498

25.4 POP3 Sender Block ............................................. 25-500

26. SCHEDULER _____________________________________ 26-502

26.1 Mail Transfer - Time ........................................... 26-503

26.2 Mail Transfer - Queue ......................................... 26-507

27. LOGS _________________________________________ 27-509

27.1 Statistics ......................................................... 27-510

27.2 Logs ................................................................ 27-514

27.3 Reports ............................................................ 27-517

PostMaster Enterprise Manual For Administrators vii i

27.4 MIS Standard .................................................... 27-520

27.5 MIS Exception ................................................... 27-527

CHAPTER 5: ANTIVIRUS ________________________________ 27-529

28. STATUS _______________________________________ 28-530

29. CONFIGURE _____________________________________ 29-533

29.1 Scan Settings .................................................... 29-534

29.2 Attachment Control ............................................ 29-537

29.3 Alerts .............................................................. 29-542

30. SECURITY ______________________________________ 30-543

30.1 Attachment Control Sender .................................. 30-544

30.2 Attachment Control Receive ................................. 30-546

31. SCHEDULER _____________________________________ 31-548

31.1 VirusDefs Download ............................................ 31-549

32. LOGS _________________________________________ 32-552

32.1 Statistics ......................................................... 32-553

32.2 Logs ................................................................ 32-556

CHAPTER 6: ANTISPAM _________________________________ 32-558

33. STATUS _______________________________________ 33-559

34. CONFIGURE _____________________________________ 34-562

34.1 Scan Settings .................................................... 34-563

34.2 Download Fi l ters ................................................ 34-567

34.3 Mail Fi l ters ....................................................... 34-571

34.4 AddressBook Update ........................................... 34-576

34.5 White List ......................................................... 34-578

35. ADVANCED _____________________________________ 35-582

35.1 Trusted Users .................................................... 35-583

35.2 Ignore Words .................................................... 35-585

35.3 View Bad Senders .............................................. 35-588

35.4 View Bad URLs .................................................. 35-589

36. SCHEDULER _____________________________________ 36-590

37. LOGS _________________________________________ 37-593

37.1 Statistics ......................................................... 37-594

37.2 Logs ............................................................... 37-597

PostMaster Enterprise Manual For Administrators ix

CHAPTER 6: SYNCBOOKS ________________________________ 37-599

38. SCHEDULER _____________________________________ 38-600

38.1 Sync Address Books ........................................... 38-601

39. LOGS _________________________________________ 39-604

PostMaster Enterprise Manual For Administrators x

Module1 - Getting Started

PostMaster Enterprise Manual For Administrators 1-1

1. Conventions

Convention Description

Bold Indicates the name of the fi le, window,

dialog, or user interface element such

as a button or a field

Blue Text Indicates a hyperl ink to a place in the

document or an external web page

Note Indicates additional information about the topic

Tip Indicates additional information about the topic. More in terms of what can be

done.

License Indicates that the features, actions, components or modules described may

require the presence or purchase of

l icensed software.

Warning Warning for the user. Be careful of the possible problems noted here.

Menu -> Submenu Indicates the navigational path to be

fol lowed through a menu.

Indicates that the text inside the

brackets should be replaced by a string

or value specific to the users computer

and operating system.


2. Getting Started

Welcome to the world of PostMaster Enterprise, a streamlined Internet

Productivity Suite, that enables you to set up, monitor and refine the

processes in your organization, that use the Internet as a medium of

communication.

PostMaster EnterpriseTM works over any type of Internet connection, even

a dial-up connection. It can be instal led on any one computer on your

LAN.

If you are using dial -up access for the Internet, the modem should also be connected to this computer.


About this Manual

This is the Operations Manual for the PostMaster Enterprise system. This

manual is a guide to setting up, configuring and using PostMaster

Enterprise and its modules- PME-Core, PME-PostMaster and PME-Mail

along with the plug-ins of PME-Mai l - AntiVirus for PME-Mai l & AntiSpam

for PME-Mai l .

The manual serves as an Operations Manual for the PostMaster

Enterprise System; hence, i t also provides (in brief) general instructions

on Internet, mai l ing, browsing, networking and connectivity concepts. It

wi l l , however, not teach you how to use your operating system.

The PostMaster Enterprise System is under constant development, and

the Reference Manual is updated regularly as wel l . The most recent

version of the manual is avai lable onl ine in a PDF format at

http://download.qlc.co.in/PostMasterEnterpriseUserManual.zip


System Requirements

The System Requirements for computer on which PostMaster Enterprise

is to be instal led is detai led into the fol lowing sections:

Hardware

Free Space

Operating Systems

Software

Networking

Licensing

Hardware

The fol lowing is the minimum hardware requirements for PostMaster

Enterprise

Pentium-class or equivalent computer

Color monitor and graphics adapter (Minimum 256 color display)

Network Interface Card (NIC) i .e. a LAN card

Modem (in case of dial-up Internet access)

CD-ROM drive

Minimum 128 MB RAM (512 MB Recommended).

Note - For instal lation with up to 25 users 128 MB of RAM is mandatory. For instal lations with 50 users and above, minimum

memory requirement for PostMaster Enterprise is 512 MB. For

instal lations with 250 users and above, minimum memory

requirement for PostMaster Enterprise is 1 GB. Memory

requirements also increases with increase in the number of

users and volume of the mai ls sent / received.

Free Space

A sufficient amount of free space on the hard disk. As a thumb

rule the free space should at minimum be double the RAM.

Internal ly PostMaster Enterprise requires at least 50 MB for the

program and another 500 MB to 10 GB depending on the number

of users and the volume of mai ls sent and received.

Ensure sufficient Hard Disk Space is avai lable on the drive where

PostMaster Enterprisev6 is instal led. The free space should be

200 MB to 2 GB plus space required for the mai ls to be stored.

This is obviously dependent on the number of users you have and

the amount of mai lbox quota you have allocated to each user.


If MySQL Server in not instal led on the same drive / partit ion as

PostMaster Enterprise v8.00 Ensure sufficient Hard Disk Space is

avai lable on the drive where MySQL Server is instal led. The free

space required for MySQL should be more than 200 MB.

The free space on C Drive (Windows) or / (Linux) should ALSO be

more the Windows System Paging Fi le (Windows) or System Swap

Fi le size (Linux). If free space is less than the size of Windows

System Paging Fi le (Windows) or System Swap Fi le size (Linux),

there wi l l be a lot of fi le / disk swapping leading to high CPU

Usage.

Operating System

PostMaster Enterprise has been developed in Java and is operating

system independent. It can run on any operating system for which the

Java Virtual Machine (JVM) is avai lable. In most cases, JVM is part of the

operating system instal lation.

The PostMaster Enterprise has been tried and tested on the fol lowing

operating systems:

Microsoft Windows 2000/2003/2008.

Unix flavors / Linux / Solaris

Also works on 64 Bit system. It needs separate JRE and MySQL of

64 Bit.

Software

The fol lowing software packages are compatible with PostMaster

Enterprise:

Any POP and SMTP compliant e-mail cl ient Microsoft Outlook,

Microsoft Outlook Express, Netscape Messenger, Eudora to send

and receive e-mail

Any HTTP 1.0/1.1 compliant browser Internet Explorer,

Netscape Navigator, Mozi l la to view html pages over the

internet using proxy.

Any HTTP 1.0/1.1 compliant b rowser Internet Explorer

(recommended for best view), Netscape Navigator, Mozi l la to

carry out any administrative tasks and effect any changes in

PostMaster Enterprise configuration and to use PostMaster

Enterprise WebMail .

If PME-Calendar with Outlook connectivity is to be used,

Microsoft Outlook is required.


Network Related

The fol lowing points related to networking need to be considered.

Static IP address for the PostMaster Enterprise computer

TCP/IP set up and configured in the LAN

Dial-Up Networking/RAS (or equivalent for non-Microsoft

platforms) set up and configured


Installing PostMaster Enterprise

For a fresh instal lation of PostMaster Enterprise on Microsoft Windows:

1. Ensure that the computer on which you are setting up PostMaster

Enterprise complies with the system requirements. Refer 0

System Requirements.

2. Insert the PostMaster Enterprise CD into the CD -ROM drive.

3. Explore the CD to navigate to the folder PostMaster Enterprise

.

The folder name includes the version number of PostMaster Enterprise,

for example, PostMaster Enterprise v8.00. The folder is located in the root

directory of the PostMaster Enterprise CD).

4. Double-cl ick PME-setup.exe to launch the PostMaster

Enterprise instal lation.

5. Fol low the steps displayed on screen.

It is recommended that you accept the setup defaults for the instal lation.


Upgrading to the Latest Version

To upgrade to latest version of PostMaster Enterprise:

1. Insert the PostMaster Enterprise CD into the CD -ROM drive.

2. Explore the CD to navigate to the folder PostMaster Enterprise

.

The folder name includes the version number of PostMaster Enterprise, for example, PostMaster Enterprise v8.00. The folder is located in the root directory of the PostMaster

Enterprise CD.

3. Double-cl ick PME-upgrade.exe to upgrade to the latest version.

4. Fol low the steps displayed on screen.

It is recommended that you accept the setup defaults for the upgrade.


Activating the License

On purchasing PostMaster Enterprise, you receive a personal ized l icense

fi le to activate the instal lation. The l icense fi le is sent via e-mail or on a

floppy disk and is typical ly named l icense..

Licensing of PostMaster Enterprise is based on Cl ient Access Licenses

(CALs) purchased for a single server instal lation.

Al l PostMaster Enterprise modules l ike PME-Mai l , PME-Web and PME-

Calendar have their individual CAL count. Plug-ins to modules l ike

AntiVirus AttachmentControl and AntiSpam has the same CAL as their

parent module.

For example, a 25-user PME-Mai l l icense enables you to add and activate

up to 25 users in PME-Mai l . A 12-user PME-Web l icense enables you to add

and activate up to 12 users in PME-Web.

General ly, al l the modules in PostMaster Enterprise have the same CAL.

However, technical ly i t is possible to have different CALs for different

modules.

To activate your l icense:

1. Locate the fi le named l icense (with no extensions) in the directory

where PostMaster Enterprise has been instal led.

The default path is C:\Program Files\QLC\.

2. Rename the fi le, l icense, from the C:\Program Fi les\QLC\ to

l icense.o ld.

3. Copy the fi le l icense. to C:\Program Fi les\QLC\

4. Rename l icense. to l icense .

5. Start PostMaster Enterprise.

For more detai ls about our l icensing policy and other commercial information, write to [email protected].

PostMaster Enterprise Manual For Administrators 2-

10

The KYC Screen

On successful instal lation of PostMaster Enterprise TM appl ication, a wizard

asking for customer detai ls appear. It is mandatory to provide required

detai ls in KYC (Know Your Customer) wizard to further use PME appl ication.

Note that, this screen wi l l re-appear after every three months asking to

confirm your detai ls.

As shown in below figure, provide the required detai ls and cl ick the

Confirm button to proceed.

F igure 2 -1 : T he KYC Wiza rd


11

How PostMaster Enterprise Components Work

This section gives a brief idea on the internal working of the various

modules and plug-ins of the PostMaster Enterprise suite.

For ease of understanding the section is further categorized as below:

How PME-Mai l Works

How PME-Web Works

How PME-Calendar Works

How AntiVirus For PME-Mai l Works

How AntiSpam For PME-Mai l Works


12

How PME-Mail Works

When users send e-mail , their e-mail cl ient contacts the SMTP server bui lt

into PME-Mai l , which accepts the message for del ivery. If the message is

for a local user, i t is del ivered instantly to that user's mai lbox. If not,

PME-Mai l recognizes that the message is to be sent via the Internet and

queues it in the Outbox for dispatch during the next mai l transfer.

The next time PME-Mai l connects to the Internet (using your ISP account),

i t does the fol lowing:

Sends out al l the spooled messages from its Outbox

Downloads inbound e-mail from al l the mai lboxes configured

Re-distributes incoming e-mail into local mai lboxes

The distribution of local mai ls is done on the basis of email address. You

need to have registered a domain and your users need to have been given

personal ized email -ids in the format [email protected].

For example, i f you have registered the domain PostMaster

Enterprise.co.in, users would have personal ized IDs of the form

mailto:john@PostMaster Enterprise.co.in , mai lto:dj@PostMaster

Enterprise.co.in, mai lto:jane@PostMaster Enterprise.co.in and so on.

Based on the email -id, PostMaster Enterprise wi l l f ind out to which

account the mai l is to be del ivered.

The mail upload and download process has intel l igence built into it. Whi le

uploading or downloading the mails size restrictions could be set. This wi l l

ensure that during the peak hours your mai l transfer is not hampered by

large size mai ls.

The distribution process is where magic happens in PME-Mai l . It is

during the distribution process that i t is checked whether a particular user

has rights to receive the mai l(s). Mai ls received for particular email -ids

can be forwarded to any other pre-defined email-ids. Robot service can be

invoked to take automated action based on header / content of the mai l .

Actions related to PME-To-PostMaster Enterprise Del ivery noti fication also

comes into play during the distribution process.

It is during the distribution process that the plug-ins AntiVirus for PME-

Mai l and AntiSpam for PME-Mai l are invoked. Both the virus-scanning and

the spam-detection engine are bui lt into PME-Mai l . This exceptional

integration enables a superior performance.

Del ivery of the mai l to users' mai lbox also has some smart capabi l i t ies.

User Level Robot Service, i f enabled for the user, can take automated

action based on the based on header / content of the mai l . Auto -response

mechanism, i f enabled, is also activated at the time of local del ivery.


13

How PME-Web Works

When users want to browse the net, they configure their browsers to

connect to the Internet via the PME-Web. The PME-Web receives requests

from the browser, checks it and forwards the same request to the server

over the Internet. It then waits for a response from the Internet s erver.

On getting a response from the server, the PME-Web intel l igently forwards

this to the original requester. PME-Web acts as a go between the users

with the browsers and the Internet. It can do this for unl imited number of

users. Obviously, i f many users are browsing at the same time then the

Internet bandwidth is shared across al l of them making the request -

response time from the servers slower.

Since the users wil l always go through PME-Web, PME-Web can be

configured to do a few smart things:

Store (cache) commonly used static web pages in the local

memory to enable faster access

Block access to pre-defined sites OR al low access only to pre-

defined sites

Block fi le download based on the fi lename OR al low download

only of predefined fi les

Block advert isement banners to reduce bandwidth uti l ized by

downloading such images

The above process f low was mentioned for user browsing the Internet i .e.

PME-Web acted as HTTP Proxy. Similarly, PME-Web can act as proxy

server for other popular Internet protocols l ike FTP, SOCKS and RAV.


14

How AntiVirus For PME-Mail Works

In AntiVirus for PME-Mai l , the scanning process is tightly integrated with

the process of sending / receiving mails (local / remote). For outgoing or

internal mai ls, the mai ls are scanned as soon as the SMTP server receives

them. For incoming mails, the mai ls are scanned as soon as the POP3

cl ient downloads them. In effect the scanning engine is in -bui lt into the

SMTP server / POP3 cl ient. It is also possible to scan internal mai ls. No

other scanning engine can offer this level of integration.

A major USP of AntiVirus for PME-Mai l is the fact that in case of vi rus

detection, only the infected part is deleted. General ly, the user wi l l

receive the mai l minus the infected attachment. Most anti -virus software

for mai l servers delete or block the entire. This means that recipient does

not receive the mai l at al l .

A mai l could contain many parts. Some parts of the mai l are text, some

are html and sti l l other is attachments (binary fi les, zips, exes, images

etc). When PME-Mai l receives a mai l , the AntiVirus engine is invoked. The

AntiVirus engine breaks the mails into various parts.

Once the various attachments are individually avai lable, each fi le is

checked with the Attachment Control l ist. If an attachment matches with

the fi le name or fi le type mentioned in the Attachment Control l ist, the

said attachment is deleted. Optional ly, Attachment Control can also detect

fi le within zip fi les. If a l isted attachment is found in a zip fi le, the zip fi le

wi l l be deleted.

After the Attachment Control process, each part is scanned for virus. On

detecting a virus, actions carried out are based on scan settings:

If the scan setting is set to clean the attachment, AntiVirus for

PME-Mai l wi l l try to clean the attachment.

If the scan setting is set to clean the attachment, AntiVirus for

PME-Mai l wi l l delete only the infected attachment (without

attempting to clean i t), rest of the mai l passes through.

If the scan setting is set to quarantine the mail , then AntiVirus

for PME-Mai l re-directs the mai l to a separate Quarantine Area

within the PostMaster Enterprise folders. In this option the user

wi l l not receive the original message.

Provision is also made for the situation where cleaning an attachment of a

virus fai ls.

If the disinfect fai ls setting is set to clean the attachment,

AntiVirus for PME-Mai l wil l delete only the infected attachment

(without attempting to clean it), rest of the mai l passes through.


15

If the disinfect fai ls setting is set to quarantine the mail , then

AntiVirus for PME-Mai l re-direct the mai l to a separate

Quarantine Area within the PostMaster Enterprise folders. In this

option the user wi l l not receive the original message.

For any mail where attachment/s were cleaned or deleted and forwarded

to the recipients, AntiVirus for PME-Mai l wil l insert a Scan Report

indicating the action taken. Optional ly AntiVirus for PME-Mai l can insert

Scan Report for vi rus free mai ls. AntiVirus for PME-Mai l can also generate

Alert Mai l , which is a separate mai l that is sent out to the admin, sender,

recipient or any other user-defined email/s as configured.


16

How AntiSpam For PME-Mail Works

AntiSpam for PME-Mai l service uses a variety of techniques to identi fy and

detect Spam (unsol icited / junk mail) from legitimate mai l intended for

you. Unl ike mal icious / hosti le content (viruses), Spam is more difficult to

classify and therefore to identi fy. Hence, Anti -Spam works through

tagging the mails as "Spam" rather than deleting.

The Anti-Spam system on PostMaster Enterprise server scans al l messages

that are received from external (non-PostMaster Enterprise) users either

via SMTP Server or downloaded via POP3 cl ient. Every message that is

suspected of being unsol icited, gets "tagged" as "Spam". A tag is simply

an un-intrusive phrase that gets inserted into the header (or subject l ine)

of an e-mail message, e.g. SPAM. This phrase can then be used by your

email cl ient to automatical ly fi l ter these messages and fi le i t away into a

"junk" folder. Thus el iminating the offensive and distracting clutter in

your Inbox.

The AntiSpam Service can protect you from Spam Mai ls even before they

mails come in (either via POP3 cl ient downloads / mai ls received via the

SMTP server) to the system. Download settings may be appl ied to e -mail

that you are sure is Spam. This ensures that such messages are not even

received into the system, saving your Internet bandwidth. In case of mai l

coming in via SMTP, the mai l is directly rejected. In case of POP3

downloads, you can use the Download Fi l ters to either delete such e -mail

from the POP3 server or leave it on the POP3 server. In case, the mai l

matches multiple fi l ter rules, the action taken on the mai l (delete from

server or leave on server) depends on the first rule matched.

The AntiSpam engine works only on mails received from remote users

(either via POP3 cl ient downloads / the SMTP server). For incoming mails,

PostMaster Enterprise AntiVirus scans the mails as soon as the SMTP

Server / POP3 cl ient receives them. Immediately after, the anti -virus

scanning, the PostMaster Enterprise AntiSpam engine is invoked. In effect

the AntiSpam engine is in-bui lt into the SMTP server / POP3 cl ient.

The AntiSpam engine starts the process of identi fying spam or non -spam

according to the fol lowing steps:

If enabled, then message/s received from domains configured in

PostMaster Enterprise are tagged as non-spam. Al l other

messages fol low the steps further.

If enabled, then al l message/s received from addresses that are

part of the Global address book are tagged as non-spam. Al l

other messages fol low the steps further.

You can specify custom fi l ters on the Mai l Fi l ters screen, in the

Mai l Fi l ters section. If enabled, f i l tering is based on the header


17

settings you specify. Messages satisfying any one of the criteria

set as header settings are tagged as spam or non -spam. Al l other

messages fol low the steps further.

If enabled, then e-mail received from addresses that are part of

the users personal address book are tagged as non -spam for

that user only. If the mai l contains multiple recipients for whom

AntiSpam has not yet determined the AntiSpam tag, the process

is carried further. For other messages, the process is carried

further.

Users can also specify certain user level fi l ters on the WebMail

interface. Again, If enabled, fi l tering is based on the header

settings specified. The messages are accordingly tagged as spam

or non-spam for the user only. If the mai l contains multiple

recipients for whom AntiSpam has not yet determined the

AntiSpam tag, the process is carried further. For other messages,

the process is carried further.

If enabled, then al l the URLs within the mai ls are extracted and

checked against the Bad URL Database. If any match is found,

the message is tagged as spam. For other messages, the process

is carried further.

If enabled, the email address mentioned in From of the mai l

header is extracted and checked against the Bad Sender

Database. If any match i s found, the message is tagged as spam.

For other messages, the process is carried further.

Messages not yet tagged as spam or non-spam (for all the

users), undergo the Spam Detection process, i f enabled. In this

process, words in the e-mail are compared with the words that

are part of the AntiSpam engine database (SpamDefs). Based on

this, the mai l (for the balance users) wi l l be tagged as Spam or

NoSpam.

For any of the above steps, i f messages are marked as spam, a header as

given below is inserted in the mai l

"X-PME-Classification: NoSpam"

or

"X-PME-Classification: spam"

The PostMaster Enterprise AntiSpam team is constantly working to find

out the latest trends in spam by keeping itself updated through various

RBLs (Real-time Black Lists) and spam archives. Nowadays, spam has

started originating from new URLs. The AntiSpam engine database is

constantly updated with this information, which it uses for spam


18

detection. The SpamDef consists of Bad URL Database and Bad Sender

Database.


19

Features of PostMaster Enterprise

The PostMaster Enterprise TM appl ication is written in Java and can run on

any operating system including Microsoft Windows 2000/2003/2008, Unix,

Sun Solaris, SGI and Linux. It is user friendly and has context sensitive

help.

It provides a complete mai l ing and internet connectivity solution for your

organization. In addition, you can enhance the uti l i ty of PostMaster

EnterpriseTM for protection against spam and viruses.

The complete feature l ist is categorized into different sections as below:

Common Features

PME-Mai l

PME-Web

PME-Calendar

AntiVirus For PME-Mai l

AntiSpam For PME-Mai l

PostMaster Enterprise WebMail


20

Features of PostMaster Enterprise - Common

The fol lowing features of PostMaster Enterprise are shared across al l

modules / plug-ins includes:

User-friendly Interface

Administration of PostMaster Enterprise is done via the famil iar

interface of the universal web browser using a standard look and feel -

no learning curve.

Context-sensitive Help

PostMaster Enterprise now incorporates context sensit ive help, a

standard for the PostMaster Enterprise range of products. In the rare

case you come across a situation where you are not sure of what to do,

help is just a cl ick away.

HTTP Server

PostMaster Enterprise provides you with an in -built HTTP and HTTPS

servers for your internal use. HTTP / HTTPS Server al low you to publ ish

information in your internal network.

FTP Server

PostMaster Enterprise provides you with an in-bui lt FTP and FTPS

servers for your internal use. Using FTP / FTPS Server, users can

access their home area on the server to store fi les and other

information. FTP / FTPS also have an optional provision for

anonymous login.

Shared Folders FTP Server

The PostMaster Enterprise FTP Server also comes with a faci l i ty for

Shared Folders. Using the Shared Folder of FTP Server, users can

access a common / area on the server to store fi les and other

information.

LDAP Server

PostMaster Enterprise provides you with an in-bui lt LDAP and LDAPS

server. User's email cl ients can connect to the LDAP Server and obtain

information avai lable in the PostMaster Enterprise Address Books. With

effect from PostMaster Enterprise v6.0.29, LDAP server can opti onal ly

enforce user name / password based Authentication.

Home Page

After the user login, he / she are directed to a "Home Page". The

PostMaster Enterprise Homepage of your organization is completely

customizable. You can edit the News, Message of the Day and even the


21

Login Message. In the News section you may provide l inks to other

pages within the Intranet.

Quick Messaging

Quick Messaging enables intra-net users to communicate with each

other in almost real time. QuickMsg provides an effective solution to

real-time but informal communication needs in the office.

User Controls For FTP & QuickMsg

Access to FTP Server can be made avai lable to the PostMaster

Enterprise users selectively. Settings are also avai lable for permissions,

quota for user's home area. Separate settings are available for to

decide is user can access the Shared Folder of the FTP Server and i f yes

which what permissions. In addition to the user level FTP Settings, user

level settings for QuickMsg are also avai lable.

Bandwidth Management

Each module of PostMaster Enterprise is optimized to use as much

bandwidth as is avai lable. With multiple modules in use it is useful to

control how much bandwidth each module should use. Bandwidth

Management enables the administrator to manage the bandwidth , thus

making sure that mai l transfer process is not affected.

Friendly IP List

A lot of checks within PME-Mai l and PME-Web are based on whether the

connection to PostMaster Enterprise has originated from IP Address

within the LAN or an Internet IP Address . PostMaster Enterprise

maintains a l ist of Internet IP Address, which is marked as "friendly"

and are treated on par with IP Address originating from within the LAN.

User Groups

PostMaster Enterprise al lows you to define User Groups. Groups can be

defined per PostMaster Enterprise modules. The groups can be common

across the PostMaster Enterprise modules or can be separate for each

module. The users defined in PostMaster Enterprise can be optional ly

mapped to a Group. Users belonging to a particular group inherit

properties of that group. Users can belong to different groups in each

PostMaster Enterprise module. It is also possible that a user may not

belong to a Group.

Scheduled Configuration Backups

PostMaster Enterprise enables you set schedules for automatic back up

of PostMaster Enterprise fi les. This feature backs up important fi les

related to PostMaster Enterprise configuration. With constant backups

take, the backup f i les tend to occupy large amount of disk space.

Hence, they should either be periodi cal ly purged (manual ly) or rotation


22

should be used. Rotation provides a function wherein old backup fi les

are not directly deleted but retained ti l l a specified number of backups

are created. After this, the oldest backup is deleted.

Configuration Backup In User Defined Paths

In addition to the normal backup which is done within the QLC folder,

optional ly configuration backup can be taken on User Defined Path /

Folder. If folder does not exist i t wil l get created. The path specified

could also be on a different machine i f the drive is mapped to

PostMaster Enterprise machine. The backup to User Defined Folder is

without "rotation"

Definition Downloads

Definition Downloads are avai lable for Proxy Server, AntiVirus and

AntiSpam. You can choose to manual ly upda te your definition fi les or

automate the process by setting up an automated schedule for updating

the Definition Fi les.

Dialer

PostMaster Enterprise uses the QLC Dialer to dial -up to the Internet in

case your organization does not have a direct connection. The QLC

Dialer is an independent appl ication, which intel l igently manages the

connection requests from multiple cl ient appl ications.

Single Sign on

All users have a single login and password for al l the modules within

the PostMaster Enterprise suite. So whether the user is connecting to

the PME-Mai l to send / receive mai ls or the user is using PME-Web to

access the Internet, the login / password remain the same. No more

remembering different login / password for different appl ications.

Multiple Logins From Same Machine

PostMaster Enterprise now al lows different users to be logged into

PostMaster Enterprise from multiple browser instances using same

machine.

Comprehensive logging / reports

PostMaster Enterprise offers several reporting features to help

monitor e-mail and Internet usage. These include real time statistics,

reports for incoming and outgoing messages as wel l as logs of al l

activity. Al l PostMaster Enterprise modules have logs that contain

detai led technical information that is used for debugging, trouble-

shooting; and in general ensuring that PostMaster Enterprise works

properly. Al l logs can be enabled or disabled and can provide normal or

detai led level of logging.


23

Log Rotation

With constant logging of activit ies, log fi l es tend to get large and

occupy large amount of disk space. Hence, they should either be

periodical ly purged (manual ly) or log rotation should be used. Log

Rotation provides a function wherein log fi les are periodical ly reset

based on the Log Rotation mode. Old log fi les are not directly deleted

but retained ti l l a specified number of fi les are created. After this, the

oldest log fi le is deleted.

Rule Control

Rule Control is a powerful feature that lets you change group / user

level settings of many groups / users with minimal effort. For example,

i f you want to introduce mailbox quota for al l the users in your

organization, you could edit each individual user and change the quota

settings. Alternatively, you could use Rule Control and change the

quota settings of al l the users in a single operation.

Free Space Checks

PostMaster Enterprise now provides an in-built faci l i ty to check for free

space on the hard disk of the PostMaster Enterprise machine. If free

space fal ls less than warning-levels, a QuickMsg / Email is sent. If free

space fal ls less than crit ical -levels, you can Stop Services or Shutdown

the System.

Logos & Colors

PostMaster Enterprise now al lows you to change the PostMaster

Enterprise Logo (displayed WebAdmin, WebMail and WebCal) and

replace it with company logo. Image types that can be used are .gif,

.jpg, .jpeg, .png. Further, change the look and feel of PostMaster

Enterprise by choosing from pre-defined Color Skins. The chosen

scheme is appl ied in WebAdmin, WebMail and WebCal. Alternativel y,

custom colors can also be defined.

Developed In Java

The PostMaster Enterprise appl ication is written in Java and can run on

any operating system including Microsoft Windows 9x/NT/2000/XP,

Unix, Sun Solaris, SGI and Linux. In fact, PostMaster Enterpris e can be

deployed on any operating system for which the JVM is avai lable

Network based License

Licensing of PostMaster Enterprise is based on Cl ient Access Licenses

(CALs) purchased for a single network (LAN / WAN) instal lation. Al l

PostMaster Enterprise modules l ike PME-Mai l , PME-Web & PME-Calendar

have their individual CAL count. Plug-ins to modules l ike AntiVirus and

AntiSpam have the same CAL as their parent module


24

Features of PostMaster Enterprise - Mail

PostMaster Enterprise can be set up as your corporate mai l server. It

provides you with a complete mai l ing solution. The PME-Mai l specific

features include:

Support for multiple domains

If your company has multiple domains registered, PME-Mai l can be

configured to use these domains to send and/or receive e-mail , as

required.

Support for all popular e-mail protocols

PME-Mai l supports all popular email protocols SMTP, POP3, and IMAP.

In addition, now each of these servers could be SSL enabled. This

enables you to have greater security whi le your users send / receive

mai ls from PostMaster Enterprise. Advanced settings are avai lable for

each of these servers to enable you fine-tunes PostMaster Enterprise

performance.

Access Control Lists

Access control l ists can be set up to restrict access to services such as

SMTP, SMTPS (Secure SMTP), POP3, POP3S (Secure POP3), IMAP, IMAPS

(Secure IMAP), LDAP, HTTP and HTTPS (Secure HTTP). This provides a

first level firewal l for security from hackers and/or crackers.

Mail Upload

PME-Mai l can be configured to send mail s using SMTP Relay Server or

via Direct Del ivery. Faci l i ty is also provided to configure Secondary

SMTP Relay Server which can be used to send mails i f the Primary SMTP

Relay is not reachable. Upload rules enforce size restriction to ensure

peak hour traff ic is not bogged with large size mai ls. SMTP transfer to

SSL enabled SMTP Server is also supported.

Direct Delivery

PME-Mai l now gives you the option of direct del ivery of e -mail to a

specified domain, instead of sending it through SMTP relay (i .e., via

third party SMTP servers, l ike those of your ISP).

Mail Download Using POP3 accounts

PME-Mai l can be configured to receive e-mail from multiple POP3

accounts. E-mail received is then distributed to the local recipients

based on their e-mail addresses or their real names. Each POP3 account

could have download size restriction with faci l i ty to leave mail on

server, delete mai l from server or delete mai l from server after n days.

POP3 download from SSL enabled POP3 Server is also supported.

Simultaneous Send-Receive (multi threaded)


25

PME-Mai l can be configured to send and receive mai ls simultaneously

(paral lel transfer). In addition to this, the maximum number of

simultaneous connections to be made by the SMTP cl ient to the SMTP

Relay server or the POP3 Cl ient to the POP3 server can also be

configured. The maximum number of simultaneous connections to be

made by the SMTP cl ient during Direct Del ivery is also separately

configurable.

E-mail clients

PME-Mai l works with al l popular e-mail cl ients such as Microsoft Outlook

Express, Microsoft Outlook, Netscape Communicator, and Eudora. It is

even capable of working with text based email cl ients l ike Pine. Any

email cl ient which is SMTP / POP3 protocol compliant is compatible with

PME-Mai l .

WebMail

The WebMail module in PostMaster Enterprise enables users to access

their e-mail from anywhere on the network by simply accessing the

PostMaster Enterprise computer using a normal web browser l ike

Internet Explorer or Netscape Navigator. WebMail enables user to send,

receive, and manage e-mails using a web browser.

Scheduling options

Schedules for automatic dial up and e-mail transfer can be set up for

different days of the week. Schedules could be repetitive or could be

absolute. With absolute schedul ing, i t is possible to have different e-

mail transfer intervals during the day and during the night. Schedule

options also al low initiating the e-mail transfer based on number of e-

mails which are queued for Remote Del ivery. Queue based schedul ing

can be used in conjunction with Time Based schedul ing. In queue based

schedul ing e-mail transfer can be activated when the number of e -mail

in the message spool reaches a specified l imit. Limits can be set for

each of the spools High, Normal, and Low.

Mail Transfer options

PME-Mai l al lows you to select Mai l Transfer mode from Send-Receive /

Receive-Send / Paral lel . In addition SMTP Transfer can be defined as

Perpetual / Scheduled / Manual where as POP3 Transfer can be defined

as Scheduled / Manual. In Perpetual mode outgoing mails are sen t out

as soon as the mai ls are ready for remote del ivery. In Scheduled mode,

mai ls wil l be sent out / downloaded as per the Mai l Transfer schedule.

In Manual mode mails wi l l be sent out / downloaded on manual ly

starting Mai l Transfer.


26

User Email Mapping

PME-Mai l offers a completely flexible e-mail service for user mapping.

Any user can be mapped to any e-mail provided the domain is

registered in PostMaster Enterprise. Earl ier, PostMaster Enterprise had

a restriction that a user should be compulsori ly mapped to the primary

domain. Effective PostMaster Enterprise v6.0.29 this restriction has also

been removed.

Forwarding For Incoming Mails

PME-Mai l can be set up to automatical ly forward e-mail to other local

users or remote e-mail accounts whenever a user receives any mail .

The user can optional ly delete the forwarded mails. Admin can

optional ly al low the users to maintain their own forwarding options.

Forwarding For Outgoing Mails

PME-Mai l can be set up to automatical ly forward e-mail to other local

users or remote e-mail accounts whenever a user sends out any mail .

Admin can optional ly al low the users to maintain their own forwarding

options.

Group / User level controls

The users defined in PostMaster Enterprise can be optional ly mapped to

a Group. Users belonging to a particular group inherit properties of that

group. Users can belong to different groups in each PostMaster

Enterprise module. It is also possible that a user may not belong to any

Group. The properties that a user can inherit from the group i nclude:

User Can Receive Mai l , User Can Send Mai ls, User's Mai lbox Quota, Max

Mai l Size For Send, Max Mai l Size For Receive, and Time Based Access.

In addition, each user can have separator property for Can Use

WebMail , Can Use IMAP, Can User Robot Service.

Date / Time bound accounts

PME-Mai l al lows you to create temporary accounts. These accounts are

val id only for a specified period, thereby ensuring that the e -mail IDs is

automatical ly deactivated after the specified date.

Mobile User

When enabled, al l mai ls (whether local or remote) that are directed to

the user wi l l be treated as Remote Mai l and wi l l be sent out of the PME-

Mai l system. These mails should logical ly go to the ISP POP3 Mai lbox of

the user from where the user can access the same.

Smart Auto-responder

PME-Mai l al lows for smart automatic responses through the auto -

responder feature, so that only one copy of the auto response goes to


27

any e-mail address. Further, the subject l ine of the auto response mail

is now configurable for each of the user.

Alias accounts

Alias accounts for a group or department within your organization can

be created with automatic forwarding of messages to al l members of the

group. Al ias accounts can also be used to create mai l ing l ists. Mai l sent

to the al ias account i s automatical ly forwarded to al l the email address

(local or remote) as defined in the forwarding l ist.

All-Users alias accounts

A special alias accounts for al l the users defined in PostMaster

Enterprise. Mai l sent to the al ias account is automatical ly fo rwarded to

al l the users currently defined in PostMaster Enterprise.

Sender restricted alias accounts

Alias accounts can now be configured to have restrictions on which

senders or type of senders can send mail to the al ias account. This

ensures that sensit ive forwarding l ist of your al ias accounts are not

misused.

Utilization Report

PostMaster Enterprise has now introduced Hard Disk Space / Quota

Uti l ization Report. This report shows mailbox detai ls (mai l count, space

used etc) for al l the PME-Mai l Users.

Users Cross Reference

PostMaster Enterprise has introduced User Level Cross Reference data

map for Email Mapping, Incoming Forwarding and Outgoing Forwarding.

Cross Reference Data is a very useful tool to trouble shoot issues

related to mai l-routing.

Welcome Mail

Every organization can personal ize their Welcome Mai l . For this mai l the

sender and the subject can also be user-defined. The Welcome Mai l wil l

be sent to al l new users of PME-Mai l . This mai l can optional ly be

disabled. The standard welcome mail continues to remain but now can

be disabled.

Archiving

The Archiving feature can be used to maintain copies of incoming,

outgoing and internal e-mail messages. This feature can be enabled for

al l users or alternatively for select users only. PostMaster Ente rprise

also provides for Fi le Based Archiving - where copies of mai ls are stored

as fi le on disk.

User Defined Path For File Based Archiving


28

For "Fi le Based Archiving", i f enabled, the default path is a folder within

the QLC root folder. Within this folder further folders are created based

on day-based, month-based or year-based storage. Now the mails can

be archived to User Defined Path / Folder. If folder does not exist i t wi l l

get created. The folder / path specified could also be on a different

machine i f the drive is mapped to PostMaster Enterprise machine. If

User Defined Folder is used then archiving of mai ls in the default folder

is no longer done.

Flexi-Archiving

The Archiving feature can be used to maintain copies of incoming,

outgoing and internal e-mail messages for selected group(s) of users.

Multiple such Archive Groups can be configured, now making it possible

to have "department based archiving".

RealTime-Black-Lists

PME-Mai l can be configured to connect to RBL servers and check i f the

IP Address of the connecting cl ients are l isted in the RBL and i f so,

terminate the connection. Effective PostMaster Enterprise v6.0.29 a

faci l i ty is provided wherein the RBL Servers configured can be queried

to check i f they are up and running. Additional ly, you can check i f a

specific IP Address is blackl isted.

Sender authentication

PME-Mai l can be configured to authenticate the sender before accepting

e-mail for transmission, thereby ensuring that a user can not send

mails using the e-mail ID of some other user in your organization

SSL enabled servers / clients

All servers of PME-Mai l (SMTP, POP3 and IMAP) can be run as secure

server. If your ISP provides secure SMTP Relay server and secure POP3

server, the SMTP client and POP3 cl ient of PostMaster Enterpri se are

SSL enabled and can be used to send / receive messages over secure

transmission.

Robot Service

Robot Service enables the administrator and the user to automatical ly

take certain pre-defined actions on al l (incoming, outgoing or internal)

emails, on the basis of user defined rule-sets (header / content of the

mai l). Robot Service is avai lable at global as wel l as user level.

Mail Filters

PME-Mai l Fi l ters enables you to recognize unsafe e-mail senders and

block receiving of e-mails from these senders. Blocking is possible for

SMTP as wel l as POP e-mail . Similarly PME-Mai l Fi l ters also enable you


29

to restrict users send mails to specified recipients. In addition to global

setting, Mai ls Fi l ters can also be configured group-wise.

Address Book

PME-Mai l includes an Address Book feature in which you can save

frequently used e-mail addresses for easy access. Personal Address

Books is avai lable for each user and the users can add or delete their

personal contacts in this book. Global address book contains contac ts,

which are outside your organization/ domain. Only the user "admin" can

add, edit or delete contacts in this book. However, these contacts are

avai lable (view and use in compose mail) to al l WebMail users. Local

Address Book l ists al l the local users / accounts defined in PostMaster

Enterprise.

Sync Address Book

Typical ly used in a multi -location PostMaster Enterprise / PostMaster

Enterprise setup. Sync Address Book component of each PostMaster

Enterprise / PostMaster Enterprise uploads (to the PostMast er

Enterprise Address Book Server) the address book detai ls (email ,

contact name and other detai ls) in the Local Address Book and Global

Address Book. Now the PostMaster Enterprise Address Book Server has

consol idated Local Address Book and Global Address Book. After the

upload is completed, Sync Address Book component on each PostMaster

Enterprise / PostMaster Enterprise downloads (from the PostMaster

Enterprise Address Book Server) the Corporate Address Book (the

consol idated Local Address Book) and the Master Global Address Book

(the consol idated Global Address Book). Once the books are downloaded

the internal database is updated and the Corporate Address Book and

the Master Global Address are avai lable local ly.

PostMaster Enterprise To PostMaster Enterpr ise Delivery

Notifications

PostMaster Enterprise To PostMaster Enterprise Del ivery Noti fication

provides a mechanism wherein a Del ivery Noti fication (i f enabled) is

automatical ly generated to the original sender at the PostMaster

Enterprise level for a mai l which is sent using PostMaster Enterprise

and also received by PostMaster Enterprise at the other end.

E-Mail To SMS

PostMaster Enterprise provides a faci l ity whereby any user el igible to

send SMS and can prepare an email (using email cl ient or WebMail ) and

send the mail to PME-Mai l . For such mails the To, Cc l ist should contain

the cel-tel-number in a prescribed format. The SMS text is to be typed

in the Subject. When PME-Mai l receives such a mai l , i t wi l l not send

such mails to the standard SMTP Relay Server but forwards the mai l to


30

a special SMTP-SMS gateway that in turn wi l l forward the mail as an

SMS to the specified number. Effective PostMaster Enterprise v6.0.29,

SendSMS has been introduced as one of the actions in Robot Service.

Gateways

Gateway enables Lotus or Exchange based networks (which basical ly do

not have the capabi l i ty to download mails from POP3 accounts) to

access mai l using an ISP based POP3 mail account(s).

Sync User Plug-in

The Sync User Plug-in enables synchronization among Lotus Notes or

Exchange user l ist on the gateway machine and PostMaster Enterprise

user l ist. When the PostMaster Enterprise SyncUsers process is invoked

the fol lowing activity takes place: Al l services and mail transfer are

temporari ly stopped, PostMaster Enterp rise SyncUsers component

connects to the LDAP Server on the Gateway Machine, request is made

for al l the email addresses in the LDAP database for the domain

specified, the l ist of email address got from the LDAP Server is

compared with the l ist of users mapped to the Gateway and the user for

the PostMaster Enterprise Gateway is updated accordingly.

PostMaster Enterprise Mail Moderation

PostMaster Enterprise Mai l Moderation module aims providing a faci l i ty

for moderating the flow of mai ls. Mai l moderation can be done for both

incoming and outgoing mails. The basic idea of Mai l Moderation is to

block selected mails (that require moderation based on email addresses

contained in the mai l) at the server level ti l l the designated

moderator(s) accept or reject the mai ls.


31

Features of PostMaster Enterprise - PME-Web

PostMaster Enterprise can be set up to share the Internet using proxy

services. It provides you with faci l i ty to al low or deny rights to your users

to browse, use FTP etc. The PME-Web specific features include:

Support for all major protocols

PME-Web supports HTTP (normal web browsing), FTP (transferring fi les

over Internet), SOCKS (use of proprietary protocol by certain software)

and RAV (Real Audio Video), which are widely used over the Internet.

Advanced settings are avai lable for each of these proxy servers to

enable you fine-tune PostMaster Enterprise performance.

Access Control Lists

Access control rules restrict access to services such as HTTP Proxy, FTP

Proxy, SOCKS Proxy, RAV Proxy and TPM. This provides a first level

firewal l for security from hackers and/or crackers.

TCP/IP Port Mapping

PME-Web supports TCP/IP Port Mapping, which enables you to perform

basic Network Address Translation and Port Address Translation. Al l TCP

Proxy Server are completely configurable l ike any other PostMaster

Enterprise server. These come with standard features l ike Start, Stop,

Logs and ACL.

Caching

PME-Web stores frequently accessed static web pages on the PostMaster

Enterprise computer. This enables faster access of these web pages by

the users connected to the PostMaster Enterprise computer.

User based authentication

You may not want to provide al l users in your company with Internet

access. In such cases, you can set up the proxy service to al low only

val id users to access the Internet based on password authentication.

User based authentication is also the preferred mechanism when you

want to track the internet usage of users within your organization. Use

of Alternative Authentication Mechanisms does not faci l i tate a tracking

of user based internet usage.

Alternative Authentication Mechanisms

Primari ly, PME-Web uses the normal user-name / password mechanism

for HTTP Proxy. Using user-name / password mechanism enables you to

retain maximum control over users who are accessing Internet using

PME-Web. PME-Web also supports EasyAuth and CacheAuth mechanisms.

Using EasyAuth mechanism, the PostMaster Enterprise HTTP Proxy, wi l l

not ask for user name / password for any HTTP requests. Al l the users


32

are presumed to be logged in as admin and the logs wi l l show activit ies

as admin. During EasyAuth the requesting IP Address assumes

significance. While using CacheAuth mechanism, the PostMaster

Enterprise HTTP Proxy, wi l l ask for user name / password only for the

first HTTP requests coming from a machine. After the first request, the

PostMaster Enterprise HTTP Proxy, wi l l NOT ask for user name /

password for any other HTTP requests coming from a machine ti l l the

next PostMaster Enterprise re-start. CacheAuth mechanism is useful to

overcome issues related to Windows Update.

Group / User level controls

The users defined in PostMaster Enterprise can be optional ly mapped to

a Group. Users belonging to a particular group inherit properties of that

group. Users can belong to different groups in each PostMaster

Enterprise module. It is also possible that a user may not belong to any

Group. The properties that a user can inherit from the group include:

Protocol Control, Data Transfer Control, Date Based Access, Time Based

Access.

User-Level Protocol Control

PME-Web al lows you to configure which proxy services use r(s) / group

of users can use. PME-Web can be configured to selectively al low / deny

the usage of HTTP Proxy, FTP Proxy and SOCKS Proxy.

User-Level Data Transfer Control

PostMaster Enterprise enables you to configure the maximum data

transfer per day for a user. Once the maximum data transfer l imit is

reached by the user, the user is no longer able to use PME-Web for the

day.

User level logging

In addition to system logs, use / access of the Internet can be

monitored through comprehensive user-level logs. The user-level logs

are avai lable for each proxy server. Log rotation is also provided for

user-level logging.

Dial-on-demand access

If your organization does not have a permanent connection, a dial -up

connection can be configured for use. When a user on the LAN wants to

connect to the Internet, this dial up connection initiates on its own

al lowing the user to surf the Internet.

Site filtering

PME-Web can be set up to block access to admin defined sites or al low

access only to admin defined sites. Thus, you can ensure that your


33

employees use the Internet for productive purposes only. Site fi l tering

is avai lable at global as wel l as group / user level.

Site filtering - Pre Defined

PME-Web can be set up to block access to pre-defined sites as per the

URL Fi l ter Definitions database. This database is periodical ly updated

based on the latest "Bad URL" trends in the Internet. Pre -defined Site

Fi l tering is avai lable in addition to the Global & Group / User Level Site

Fi l tering.

File filtering

PME-Web can be set up to block access to admin defined fi les or al low

access only to admin defined fi les. Thus, you can ensure that your

employees use the Internet for productive purposes only. Fi le fi l tering

is avai lable at global as wel l as group / user level.

File filtering - Pre Defined

PME-Web can be set up to block access to pre-defined fi les as per the

Fi le Fil ter Definitions database. This database is period ical ly updated

based on the latest "Bad Fi les" trends in the Internet. Pre -defined URL

Fi l tering is avai lable in addition to the Global & Group / User Level Fi le

Fi l tering.

Advertisement filtering

In order to optimize the usage of bandwidth, PME-Web can be

configured to control downloading of advertisement banner images.

Auto Download of Filter Data Files

PME-Web can be set up to automatical ly update the URL Fi l ter & Fi le

Fi l ter definitions database through the smart update faci l i ty.


34

Features of PostMaster Enterprise - PME-Calendar

The PME-Calendar enables an organization to provide its users with a

calendaring / scheduling mechanism. PME-Cal al lows users to define tasks,

events and conferences. Email / QuickMsg based alerts wi l l act as

reminders to the users' task, events and conferences. The PME-Cal

enables users to access their calendar from anywhere on the network by

simply accessing the PostMaster Enterprise computer using a web browser

l ike Internet Explorer or Netscape Navigator. PME-Cal provides a

central ized storage of the users' calendars and also enables sharing of

users' calendars as per their preferences.

The features provided within PME-Cal include:

Calendar Viewing

PME-Cal provides an easy and user-friendly way to view your activit ies.

PME-Cal provides a monthly, weekly as wel l a dai ly view. Navigation

from one day to other or changing of the view is a simple one cl ick

operation. In addition to this search and fi l ter faci l i t ies provided makes

it easy to locate an activity.

User Specific Activity (Task / Date-Reminders / Events)

PME-Cal al lows users to set activit ies l ike Tasks - a ToDo, Date-

Reminder - a repetitive ToDo (Weekly, Monthly, Annual), Events - an

activity on a specific date & time (or for a time range). Reminders can

be set for al l mentioned activit ies. Reminder alerts wi l l be generated

prior to the events as per the specified time. If the alert time is missed

(because of system being down or stopped), alerts wi l l sti l l be

generated (on the next start-up).

Collaborative Activity (Conferences / Invitations)

PME-Cal al lows users to set activit ies l ike conferences. Conference, is a

"common / shares event for multiple users". A user (Initiator) wanting

to set up a conference first identi fies the other users who are to be part

of the conference. The user sends an "Invitation" to al l the identi fied

users (invitees). Invitees wi l l receive an alert via Email or QuickMsg.

The Invitees on receiving the invitation wi l l respond by "Accepting" or

"Rejecting" the Invitation. The Initiator can check the

"Accepted/Rejected" status from the invitees, optional ly delete the

invitee from Invitee-List and final ly confirm the conference. The

Initiator can also optional ly reset the Conference Date Time and send

new Invitation.

Outlook Connectivity


35

PME-Cal provides a seamless integration with Microsoft Outlook. If you

have a network of Outlook Users, al l of them can view other users

"free-busy-time". Outlook Users can send invitations to other Outlook

users who can accept or reject the invitation. Calendar for both these

Outlook users is automatical ly updated. Seamless integration is also

possible for a user not using Outlook to col laborate with an Outlook

User and vice versa.

Collaborative Calendar Viewing

PostMaster Enterprise WebCal allows you to view the

calendars of other WebCal users or even Outlook users.

This enables the users check the "free-busy-time" of other

users before initiating a collaborative activity


36

Features of PME - AntiVirus for PME-Mail

In AntiVirus for PME-Mai l , the scanning process is tightly integrated with

the process of sending / receiving mails (local / remote). For outgoing or

internal mai ls, the mai ls are scanned as soon as the SMTP server receives

them. For incoming mails, the mai ls are scanned as soon as the POP3

cl ient downloads them. In effect the scanning engine is in -bui lt into the

SMTP server / POP3 cl ient. Now, it is possible to even scan the internal

mai ls. No other scanning engine can offer this level of integration.

The features of the AntiVirus service include:

Exceptional Integration

The virus-scanning engine is bui lt into the SMTP, POP3 and IMAP

servers enabl ing very tight integration with the mai l ing system.

Messages are scanned as the SMTP / IMAP servers or the POP3

cl ient receives them.

Scan Options

The AntiVirus service has multiple scanning options, which can be

customized separately for incoming e-mail , outgoing e-mail or

internal e-mail . On detecting a virus, you have total control on

the type of action to be taken.

Attachment Cleaning / Deletion & Mail Quarantine

As much as possible the efforts of the AntiVirus services wi l l be

to clean the suspect or infected attachment . If the cleaning fai ls

then the suspect or infected attachment is deleted and the rest

of the mai l is forwarded to the recipients.

Alerts Through E-mail

The AntiVirus service provides the facil i ty of sending automatic

alerts, when it detects a virus-infected message, to any or al l of

the fol lowing: administrator, sender, recipient, or any other user.

Auto Download of Virus Data Files

The AntiVirus service can be set up to automatical ly update the

virus definitions database through the smart update faci l i t y.

Attachment Control

The attachment control component of the AntiVirus service

checks the mai ls for black-l isted attachments, i f found the said

attachments are deleted with relevant message being inserted in

the mai l . The AntiVirus service has a global at tachment control

l ist in addition to a separate l ist for Outgoing, Incoming and

Internal mai ls.


37

Attachment Control Within Zip Files

Attachment Control can now optional ly check for attachments

within zip fi les. If a black-l isted attachment is found in the zip

fi le, the entire zip f i le is deleted. The Attachment Control within

Zip Fi les checks even works with password protected zip fi les.

This further enhances the control you can exercise over

attachments flowing to and from your organization.


38

Features of PME - AntiSpam for PME-Mail

AntiSpam for PME-Mai l service uses a variety of techniques to identi fy and

detect Spam (unsol icited / junk mail) from legitimate mai l intended for

you. Unl ike mal icious / hosti le content (viruses), Spam is more difficult to

classify and therefore to identi fy. Hence, Anti -Spam works through

tagging the mails as "Spam" rather than deleting.

The Anti-Spam system on PostMaster Enterprise server scans al l messages

that are received from external (non-PostMaster Enterprise) users either

via SMTP Server or downloaded via POP3 cl ient. Every message that is

suspected of being unsol icited, gets "tagged" as "Spam". A tag is simply

an un-intrusive phrase that gets inserted into the header (or subject l ine)

of an e-mail message, e.g. SPAM. This phrase can then be used by your

email cl ient to automatical ly fi l ter these messages and fi le i t away into a

"junk" folder. Thus el iminating the offensive and distracting clutter in

your Inbox.

The AntiSpam Service can protect you from Spam Mai ls even bef ore they

mails come in (either via POP3 cl ient downloads / mai ls received via the

SMTP server) to the system. Download settings may be appl ied to e -mail

that you are sure is Spam. This ensures that such messages are not even

received into the system, saving your Internet bandwidth. In case of mai l

coming in via SMTP, the mai l is directly rejected. In case of POP3

downloads, you can use the Download Fi l ters to either delete such e -mail

from the POP3 server or leave it on the POP3 server. In case, the mai l

matches multiple fi l ter rules, the action taken on the mail (delete from

server or leave on server) depends on the first rule matched.

The AntiSpam engine works only on mails received from remote users

(either via POP3 cl ient downloads / the SMTP server). F or incoming mails,

PostMaster Enterprise AntiVirus scans the mails as soon as the SMTP

Server / POP3 cl ient receives them. Immediately after, the anti -virus

scanning, the PostMaster Enterprise AntiSpam engine is invoked. In effect

the AntiSpam engine is in-bui lt into the SMTP server / POP3 cl ient.


39

The features that the AntiSpam service provides include:

Download Filters

The AntiSpam service has a Download Fi l ter settings feature, which

can be appl

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