Symantec 10490452 - Mail Security 8220 Manual de instrucciones

Symantec Mail Security for

SMTP

Administration Guide

Symantec Mail Security for SMTP

Administration Guide

The software described in this book is furnished under a license agreement and

may be used only in accordance with the terms of the agreement.

April 27, 2006

Symantec logo, Brightmail, LiveUpdate, SESA, and Norton AntiVirus are U.S. registered

trademarks or registered trademarks of Symantec Corporation or its affiliates in other

countries. Other names may be trademarks of their respective owners.

Symantec Mail Security for SMTP 5.0 is protected under U.S. Patent Nos. 6,052,709;

5,999,932; and 6,654,787.

The product described in this document is distributed under licenses restricting its use,

copying, distribution, and decompilation/reverse engineering. No part of this document

may be reproduced in any form by any means without prior written authorization of

Symantec Corporation and its licensors, if any.

THE DOCUMENTATION IS PROVIDED “AS IS” AND ALL EXPRESS OR IMPLIED

CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED

WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-

INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH

DISCLAIMERS ARE HELD TO BE LEGALLY INVALID. SYMANTEC CORPORATION SHALL

NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION

WITH THE FURNISHING PERFORMANCE, OR USE OF THIS DOCUMENTATION. THE

INFORMATION CONTAINED IN THIS DOCUMENTATION IS SUBJECT TO CHANGE

WITHOUT NOTICE.

The Licensed Software and Documentation are deemed to be “commercial computer

software” and “commercial computer software documentation” as defined in FAR

Sections 12.212 and DFARS Section 227.7202.

Symantec Corporation

20330 Stevens Creek Blvd.

Cupertino, CA 95014

http://www.symantec.com

Printed in the United States of America.

10987654321

Technical support

As part of Symantec Security Response, the Symantec global Technical Support

group maintains support centers throughout the world. The Technical Support

group’s primary role is to respond to specific questions on product feature/

function, installation, and configuration, as well as to author content for our

Web-accessible Knowledge Base. The Technical Support group works

collaboratively with the other functional areas within Symantec to answer your

questions in a timely fashion. For example, the Technical Support group works

with Product Engineering as well as Symantec Security Response to provide

Alerting Services and Virus Definition Updates for virus outbreaks and security

alerts.

Symantec technical support offerings include:

■A range of support options that give you the flexibility to select the right

amount of service for any size organization

■Telephone and Web support components that provide rapid response and

up-to-the-minute information

■Upgrade insurance that delivers automatic software upgrade protection

■Content Updates for virus definitions and security signatures that ensure

the highest level of protection

■Global support from Symantec Security Response experts, which is

available 24 hours a day, 7 days a week worldwide in a variety of languages

for those customers enrolled in the Platinum Support Program

■Advanced features, such as the Symantec Alerting Service and Technical

Account Manager role, offer enhanced response and proactive security

support

Please visit our Web site for current information on Support Programs. The

specific features available may vary based on the level of support purchased and

the specific product that you are using.

To receive the latest product information by email, go to:

http://www.symantec.com/techsupp/bulletin/enterprise.html

and join our support bulletin mailing list.

Licensing and registration

If the product that you are implementing requires registration and/or a license

key, the fastest and easiest way to register your service is to access the

Symantec licensing and registration site at www.symantec.com/certificate.

Alternatively, you may go to www.symantec.com/techsupp/ent/enterprise.html,

select the product that you wish to register, and from the Product Home Page,

select the Licensing and Registration link.

Contacting Technical Support

Customers with a current support agreement may contact the Technical

Support group via phone or online at http://www.symantec.com/techsupp/

enterprise/ .

Customers with Platinum support agreements may contact Platinum Technical

Support via the Platinum Web site at http://www-secure.symantec.com/

platinum/ .

When contacting the Technical Support group, please have the following:

■Product release level

■Hardware information

■Available memory, disk space, NIC information

■Operating system

■Version and patch level

■Network topology

■Router, gateway, and IP address information

■Problem description

■Error messages/log files

■Troubleshooting performed prior to contacting Symantec

■Recent software configuration changes and/or network changes

Customer Service

To contact Enterprise Customer Service online, go to www.symantec.com, select

the appropriate Global Site for your country, then choose Service and Support.

Customer Service is available to assist with the following types of issues:

■Questions regarding product licensing or serialization

■Product registration updates such as address or name changes

■General product information (features, language availability, local dealers)

■Latest information on product updates and upgrades

■Information on upgrade insurance and maintenance contracts

■Information on Symantec Value License Program

■Advice on Symantec's technical support options

■Nontechnical presales questions

■Missing or defective CD-ROMs or manuals

Contents

Chapter 1 About Symantec Mail Security for SMTP

Key features .......................................................................................................... 11

Functional overview ............................................................................................ 12

Architecture .......................................................................................................... 13

Where to get more information .........................................................................14

Chapter 2 Configuring system settings

Configuring certificate settings ........................................................................ 17

Configuring host (Scanner) settings ................................................................. 20

Working with the Services page ................................................................20

HTTP proxies ................................................................................................ 21

SMTP Scanner settings ...............................................................................22

Advanced SMTP settings ............................................................................ 25

Configuring internal mail hosts ................................................................28

Testing Scanners ................................................................................................. 28

Configuring LDAP settings ................................................................................. 29

Replicating data to Scanners .............................................................................37

Starting and stopping replication ............................................................. 38

Replication status information .................................................................. 38

Troubleshooting replication ...................................................................... 39

Configuring Control Center settings ................................................................ 40

Control Center administration .................................................................. 41

Control Center certificate ...........................................................................42

Configuring, enabling and scheduling Scanner replication .................. 42

SMTP host ..................................................................................................... 44

System locale ................................................................................................ 44

Chapter 3 Configuring email settings

Configuring address masquerading .................................................................. 45

Importing masqueraded entries ................................................................ 46

Configuring aliases .............................................................................................. 47

Importing aliases ......................................................................................... 49

Configuring local domains ................................................................................. 50

Importing local domains and email addresses ........................................51

6Contents

Understanding spam settings ............................................................................ 51

Configuring suspected spam ...................................................................... 52

Choosing language identification type ..................................................... 52

Software acceleration ................................................................................. 53

Configuring spam settings ......................................................................... 53

Configuring virus settings .................................................................................. 54

Configuring LiveUpdate ............................................................................. 54

Excluding files from virus scanning ......................................................... 55

Configuring general settings ..................................................................... 56

Configuring invalid recipient handling ............................................................ 56

Configuring scanning settings .......................................................................... 57

Configuring container settings .................................................................. 57

Configuring content filtering settings ..................................................... 58

Chapter 4 Configuring email filtering

About email filtering ........................................................................................... 61

Notes on filtering actions ........................................................................... 66

Multiple actions ........................................................................................... 67

Multiple policies ........................................................................................... 69

Security risks ................................................................................................ 70

About precedence ........................................................................................ 71

Creating groups and adding members ............................................................. 72

Assigning filter policies to a group ................................................................... 75

Selecting virus policies for a group ........................................................... 75

Selecting spam policies for a group .......................................................... 77

Selecting compliance policies for a group ............................................... 78

Enabling and disabling end user settings ................................................ 79

Allowing or blocking email based on language ....................................... 80

Managing Group Policies .................................................................................... 81

Creating virus, spam, and compliance filter policies ..................................... 82

Creating virus policies ................................................................................ 83

Creating spam policies ................................................................................ 85

Creating compliance policies ..................................................................... 86

Managing Email Firewall policies ..................................................................... 93

Configuring attack recognition ................................................................. 94

Configuring sender groups ......................................................................... 95

Configuring Sender Authentication ...............................................................105

Managing policy resources ..............................................................................106

Annotating messages ................................................................................106

Archiving messages ...................................................................................109

Configuring attachment lists ...................................................................110

Configuring dictionaries ...........................................................................112

Adding and editing notifications .............................................................114

7Contents

Chapter 5 Working with Spam Quarantine

About Spam Quarantine ...................................................................................117

Delivering messages to Spam Quarantine .....................................................117

Working with messages in Spam Quarantine for administrators .............118

Accessing Spam Quarantine ....................................................................118

Checking for new Spam Quarantine messages .....................................118

Administrator message list page .............................................................118

Administrator message details page .......................................................121

Searching messages ...................................................................................123

Configuring Spam Quarantine .........................................................................126

Delivering messages to Spam Quarantine from the Scanner .............126

Configuring Spam Quarantine port for incoming email .....................127

Configuring Spam Quarantine for administrator-only access ...........128

Configuring the Delete Unresolved Email setting ................................128

Configuring the login help .......................................................................128

Configuring recipients for misidentified messages .............................129

Configuring the user and distribution list notification digests ..........130

Configuring the Spam Quarantine Expunger ........................................135

Specifying Spam Quarantine message and size thresholds ................136

Troubleshooting Spam Quarantine ........................................................137

Chapter 6 Working with Suspect Virus Quarantine

About Suspect Virus Quarantine .....................................................................143

Accessing Suspect Virus Quarantine ..............................................................143

Checking for new Suspect Virus Quarantine messages .......................144

Suspect Virus Quarantine messages page .............................................144

Searching messages ...................................................................................146

Configuring Suspect Virus Quarantine ..........................................................148

Configuring Suspect Virus Quarantine port for incoming email .......148

Configuring the size for Suspect Virus Quarantine .............................148

Chapter 7 Testing Symantec Mail Security for SMTP

Verifying normal delivery ................................................................................151

Verifying spam filtering ...................................................................................151

Testing antivirus filtering ................................................................................152

Verifying filtering to the Spam Quarantine ..................................................153

Chapter 8 Configuring alerts and logs

Configuring alerts ..............................................................................................155

Viewing logs ........................................................................................................157

Configuring logs .................................................................................................159

8Contents

Chapter 9 Working with reports

About reports .....................................................................................................163

Choosing a report ..............................................................................................164

About charts and tables ....................................................................................172

Selecting report data to track ..........................................................................172

Setting the retention period for report data .................................................173

Running reports .................................................................................................173

Saving and editing Favorite Reports ..............................................................174

Running and deleting favorite reports ...........................................................175

Troubleshooting report generation ................................................................175

No data available for the report type specified .....................................175

Sender HELO domain or IP connection shows gateway

information .........................................................................................176

Reports presented in local time of Control Center ...............................176

By default, data are saved for one week .................................................176

Processed message count recorded per message, not per

recipient ..............................................................................................176

Recipient count equals message count ...................................................177

Deferred or rejected messages are not counted as received ...............177

Reports limited to 1,000 rows ..................................................................177

Printing, saving, and emailing reports ...........................................................177

Scheduling reports to be emailed ....................................................................178

Chapter 10 Administering the system

Getting status information ..............................................................................181

Overview of system information .............................................................182

Message status ...........................................................................................182

Host status ..................................................................................................186

LDAP synchronization ..............................................................................187

Log details ...................................................................................................188

Scanner replication ...................................................................................188

Version Information ..................................................................................188

Managing Scanners ...........................................................................................188

Editing Scanners ........................................................................................189

Enabling and disabling Scanners ............................................................189

Deleting Scanners ......................................................................................190

Administering the system through the Control Center ..............................191

Managing system administrators ...........................................................191

Managing software licenses .....................................................................192

9Contents

Administering the Control Center ..................................................................193

Starting and stopping the Control Center .............................................193

Checking the Control Center error log ...................................................194

Increasing the amount of information in BrightmailLog.log .............195

Starting and stopping UNIX and Windows services ....................................196

Starting and stopping Windows services ...............................................196

Starting and stopping UNIX services .....................................................198

Periodic system maintenance ..........................................................................198

Backing up logs data ..................................................................................198

Backing up the Spam and Virus Quarantine databases .......................199

Maintaining adequate disk space ............................................................200

Appendix A Feature Cross-Reference

New features for all users .................................................................................202

Changes for Symantec Mail Security for SMTP users .................................203

New feature names ....................................................................................204

Discontinued features ...............................................................................204

Changes for Symantec Brightmail Antispam users .....................................205

About email filtering and message handling options ..................................206

Appendix B Spam foldering and the Symantec Outlook Spam Plug-in

About foldering and the plug-in ......................................................................209

Installing the Symantec Outlook Spam Plug-in ............................................210

Usage scenarios ..........................................................................................210

End user experience ..................................................................................210

Software requirements .............................................................................212

Configuring automatic spam foldering ..........................................................217

Configuring the Symantec Spam Folder Agent for Exchange ............217

Configuring the Symantec Spam Folder Agent for Domino ...............218

Enabling automatic spam foldering ................................................................221

Enabling language identification ....................................................................222

Appendix C Integrating Symantec Mail Security with Symantec

Security Information Manager

About Symantec Security Information Manager ..........................................223

Interpreting events in the Information Manager .........................................224

Configuring data sources ..........................................................................225

Firewall events that are sent to the Information Manager .................226

Definition Update events that are sent to the Information

Manager ...............................................................................................226

Message events that are sent to the Information Manager ................227

Administration events that are sent to the Information Manager ....228

10 Contents

Appendix D Editing antivirus notification messages

Modifying notification files .............................................................................231

Changing the notification file character set ..........................................232

Editing messages in the notification file ................................................232

Notification file contents .................................................................................233

Glossary

Index

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