SonicWALL Email Security User Manual

SonicWALL® Email Security

User Guide

Version 7.2

SonicWALL, Inc.

2001 Logic Drive

San Jose, CA 95124-3452
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

Part Number: 232-001701-00

SonicWALL Email Security User Guide

Rev A

i

SonicWALL® Email Security

User’s Guide

Version 7.2

SonicWALL, Inc.

2001 Logic Drive
San Jose, CA 95124-3452
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

Copyright Notice

© 2009 SonicWALL, Inc.
All rights reserved.
Under the copyright laws, this manual or the software described within, can not be copied, in whole or part, without the written consent o f the

manufacturer, except in the normal use of the software to make a backup copy. The same proprietary and copyright notices must be affixed to
any permitted copies as were affixed to the original. This exception does not allow copies to be made for others, whet her or not sold, but all of
the material purchased (with all backup copies) can be sold, given, or loaned to another person. Under the law, copying includes translating
into another language or format.

Specifications and descripti ons subject to change without notice.

Trademarks

© 2009 SonicWALL, Inc. All rights reserved. SonicWALL is a registered trademark of SonicWALL, Inc. Other product names
mentioned herein may be trademarks and/or registered trademarks of their respective companies.

Limited Warranty

SonicWALL, Inc. warrants that commencing from the delivery date to Customer (but in any case commencing not more than ninety (90) days
after the original shipment by So nicWALL), and continuing for a period of twelve (12) months, that the product will be free from defects i n
materials and workmanship under normal use. This Limited Warranty is not transferable and applies only to the original end user of the product.
SonicWALL and its suppliers' entire liability and Customer's sole and exclusive remedy under this limited warranty will be shipment of a
replacement product. At SonicWALL's discretion the replacement product may be of equal or greater functionality and may be of either new or
like-new quality. SonicWALL's obligations under this warranty are contingent upon the return of the defective product according to the terms of
SonicWALL's then-current Support Services policies.

This warranty does not apply if the product has been subjected to abnormal electrical stress, damaged by accident, abuse, misuse or
misapplication, or has been modifi ed without the written permission of SonicWALL.

DISCLAIMER OF WARRANTY. EXCEPT AS SPECIFIED IN THIS WARRANTY, ALL EXPRESS OR IMPL IED CONDITIONS,
REPRESENTATIONS, AND WARRANTIES INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTY OR CONDIT ION OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, SATISFACTORY QUALITY OR ARISING FROM A
COURSE OF DEALING, LAW, USAGE, OR TRADE PRACTICE, ARE HEREBY EXCLUDED TO THE MAXIMUM EXTENT ALLOWED BY
APPLICABLE LAW. TO THE EXTENT AN IMPLIED WARRANTY CANNOT BE EXCLUDED, SUCH WARRANTY IS LIMITED IN DURA TION
TO THE WARRANTY PERIOD. BECAUSE SOME STATES OR JURISDICTIONS DO NOT ALLOW LIMITATIONS ON HOW LONG AN
IMPLIED WARRANTY LASTS, THE ABOVE LIMITATION MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL
RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM JURISDICTION TO JURISDICTION. This di sclaimer and
exclusion shall apply even if the express warranty set forth above fails of its essential purpose.

DISCLAIMER OF LIABILITY. SONICWALL'S SOLE LIABILITY IS THE SHIPMENT OF A REPLAC EMENT PRODUCT AS DESCRIBED IN
THE ABOVE LIMITED WARRANTY. IN NO EVENT SHALL SONICWALL OR ITS SUP PLIERS BE LIABLE FOR ANY DAMAGES
WHATSOEVER, INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, LOSS OF
INFORMATION, OR OTHER PECUNIARY LOSS ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT, OR FOR SPECIAL,
INDIRECT, CONSEQUENTIAL, INCIDENTAL, OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF
LIABILITY ARISING OUT OF THE USE OF OR INABILITY TO USE HARDWARE OR SOFTWARE EVEN IF SONICWALL OR ITS
SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. In no event shall SonicWALL or its suppliers' liability to
Customer, whether in contract, tort (including negligence), or otherwise, exceed the price paid by Customer. The foregoing limitations sh all
apply even if the above-stated warra nty fails of its essential purpose. BECAUS E SOME STATES OR JURISDICTIONS DO NOT ALLOW
LIMITATION OR EXCLUSION OF CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

NOTE: The SonicWALL Email Security software service is an annual subscripti on that is subject to the terms and conditions of SonicWALL,
Inc.’s applicable subscription agreement and includes:

Product updates, SonicWALL thre at signature updates, and standard technical support for one (1) year from the date of purchase.
SonicWALL Email Security appliances are integrated hardware and softwar e solutions, which include SonicWALL Email Security software.

SonicWALL Email Security appliance s are subject to the terms and conditions of SonicWALL, Inc.’s applicable license ag reement. Updates to
the SonicWALL Email Security soft ware, SonicWALL Spam Signature Updates, and technical support may be purchased on an annual basis.
AntiVirus support is optionally available.

Table of Contents

Preface ......................................................................................................................iii

Documentation Overview ............................................................................................iii

Documentation Conventions .......................................................................................iii

Finding Online Help ....................................................................................................iii

Chapter 1

About SonicWALL Email Security .......................... .............. ........... .............. .......1

When A Message is Flagged as Junk ...............................................................................1

Deleting Spam ...................................................................................................................2

Chapter 2

Logging In to Your Junk Box ................................................................................3

Searching in Your Junk Box ..............................................................................................4

Deleting Messages ............................................................................................................4

Unjunking Messages .........................................................................................................5

Viewing Message Content .................................................................................................5

Ending Your Junk Box Session ......................................................................................... 5

Chapter 3

Anti-Spam Techniques ..........................................................................................7

Managing Allowed and Blocked Lists ................................................................................7

Adding People to the Allowed or Blocked Lists ......... .... ... ... ... .... ... ... ...........................7

Deleting People from the Allowed or Blocked Lists ....................................................8

Adding Companies or Domains to the Allowed or Blocked Lists ................................8

Adding a Company or Domain to the Allowed List ......................................................9

Deleting a Company or Domain ..................................................................................9

Adding Lists to the Allowed List ................ ... .... ... ... ... .... ... .......................................... .9

Configuring Anti-Spam Aggressiveness ...................................................................10

Configuring SMART Network Aggressiveness Settings ...........................................11

Configuring Adversarial Bayesian Aggressiveness Settings ....................................11

Determining Amounts and Flavors of Spam .............................................................11

Screening Messages in Other Languages ................................. ... ... ... ... .... ... ... ... .... ..12

Configuring Language Preferences for SonicWALL Email Security .........................12

Configuring Language Preferences for your Junk Box Summary .... ... ... .... ... ... ... .... ..13

Chapter 4

Settings .................................................................................................................15

Spam Management .........................................................................................................15

Assigning Delegates for the Junk Box .............................................................................16

Removing a Delegate ...............................................................................................17

Junk Box Summary .........................................................................................................17

Send Simple (no graphics) Summary or Graphical Summary ..................................19

Chapter 5

Reports & Monitoring .............................................................................................21

Inbound Good vs. Junk Email ..........................................................................................22

Outbound Good vs. Junk Email .......................................................................................23

Junk Email Breakdown ....................................................................................................24

Chapter 6

Junk Button for Microsoft Outlook ....................................................................... 25

Feature Overview ............................................................................................................25

How Does the Junk Button Work? ...................................................................................25

Using the Junk Button .....................................................................................................25

installing the Junk Button .................................................................................................26

Index.........................................................................................................................27

Preface

SonicWALL Email Security guards the perimeter of the organization against the costly, dangerous,
and growing threats to corporate email. Threats are stopped before they infiltrate corporate mail
servers and employee inboxes. SonicWALL Email Security secures email connections and blocks
unwanted email while ensuring timely delivery of all legitimate email. SonicWALL Email Security
provides the most comprehensive and effective spam blocking available. The solution filters email
uniquely for each user, taking into account the different preferences and patterns of each user.

SonicWALL Email Security provides protection against all forms of email threats from entering your
Inbox, including junk email, viruses, and phishing attempts.

Documentation Overview

SonicWALL Email Security 7.1 User Guide | i

SonicWALL provides documents to install, administer, and use its products to protect email users.
It also provides documentation on managing security policies for your organization.

Who Should Read this? Document Name

Network Administrators SonicWALL Email Security Getting Started Guide

Email Users SonicWALL Email Security User’s Guide

Note:

z

To view SonicWALL Email Security documentation online, go to:

http://www.sonicwall.com/us/Support.html

Documentation Conventions

Font Meaning
Bold Terms you see in a SonicWALL Email Security window

Italic Variable names

Courier

Finding Online Help

Click Help to see a description of the window contents. IMPORTANT

z

SonicWALL Email Security uses pop-up windows for configuration and reporting. Configure your
web browser’s pop-up blockers to allow pop-ups from your organization’s SonicWALL Email
Security server.

SonicWALL Email Security Administrator’s Guide

Text on a command line

ii | - Preface

About SonicWALL Email Security

This chapter describes viewing and handling items in your SonicWALL Email Security Junk Box.

When a Message is Flagged as Junk

When SonicWALL Email Security determines a message is junk, it stores it in a Junk Box. Your
network administrator determines whether users can access their Junk Boxes. If configured, the
software periodically sends you email messages listing the messages flagged as junk email.

Figure 1 Junk Box Summary

SonicWALL Email Security 7.1 User Guide | 1

CHAPTER 1

2 | Chapter 1 - About SonicWALL Email Security

You can scan these messages to see if there are any messages you want to receive and should not
be categorized as Junk. If you see a message you want to receive, click the Unjunk link next to it
and the message is sent to your Inbox. The sender of any messages that you unjunk is added to
your list of allowed senders and their messages are not marked as junk in the future.

Depending on the settings for your organization’s installation of SonicWALL Email Security, you
might also have a View link in the Junk Box summary message. Click the link to view the contents
of the message and determine whether it is spam.

Deleting Spam

If you do not care about the messages in the Junk Box, you can leave them there. They are
automatically deleted later.

Managing the Junk Box

This chapter describes viewing and handling items in your SonicWALL Email Security Junk Box.

When a Message is Flagged as Junk

When SonicWALL Email Security determines a message is junk, it stores it in a Junk Box. Your
network administrator determines whether users can access their Junk Boxes. If configured, the
software periodically sends you email messages listing the messages flagged as junk email.

SonicWALL Email Security 7.2 User’s Guid e | 3

CHAPTER 2

Figure 1 Junk Box Summary

4 | Chapter 2 - Managing the Junk Box

Scan these messages to see if there are any messages you want to receive and should not be
categorized as Junk. If you see a message you want to receive, click the Unjunk link next to it and
the message is sent to your Inbox. The sender of any messages that you unjunk is added to your
list of allowed senders and their messages are not marked as junk in the future.

Depending on the settings for your organization’s installation of SonicWALL Email Security, you
might also have a View link in the Junk Box summary message. Click the link to view the contents
of the message and determine whether it is spam.

Logging In to Your Junk Box

When SonicWALL Email Security determines that a message contains a threat or a likely threat, it
stores the message in a Junk Box on the server and alerts you by email. You can log in to your Junk
Box to view messages that were junked by SonicWALL Email Security. Log in to SonicWALL Email
Security using the link that your IT administrator gave you or by clicking the link in the Junk Box
Summary message you receive.

IMPORTANT

z

SonicWALL Email Security uses pop-up windows to confirm actions and perform other activities.
Configure your web browser’s pop-up blockers to allow pop-ups from your organization’s
SonicWALL Email Security server.

X To log in to your Junk Box

1. Log in with your user name and password.

2. Choose the appropriate domain from the list, if necessary. Your personal Junk Box appears, with any messages that have been flagged as spam or other

unwanted email.

You can display all junk mail, likely junk mail, or other unwanted email if your organization has
configured SonicW ALL Email Security to s creen for virus es, phishing, or emai l that contains c ontent
your organization has chosen to manage through policies.

Searching in Your Junk Box

X To use Simple View

1. Enter a word or partial word in the Search text box. Search is not case-sensitive.

2. Select the field you want to search in (Subject, From). To search for words in a specific order, put double quotes around the phrase, such as “sent for review”. Only messages which match that phrase will be returned.

3. Click Search.

Messages matching your search criteria are displayed. To mov e quickly through results pages, click
in the field that says “Page 1 of 14” and type the result page you want to view. You can also change
the number of messages displayed on each page.

SonicWALL Email Security 7.2 User’s Guid e | 5

X To use Advanced View

1. On th e Junk Box page, click the Advanced View button.

2. To search for specific email threat types, clear the check boxes under the Search text box to remove the information you want excluded.

3. Click Search.

Messages matching your search criteria are displayed. To mov e quickly through results pages, click
in the field that says “Page 1 of 14” and type the result page you want to view. You can also change
the number of messages displayed on each page.