User manual KAPERSKY MAIL GATEWAY 5.5 ADMINISTRATOR GUIDE

[. . . ] KASPERSKY LAB Kaspersky® Mail Gateway 5. 5 ADMINISTRATOR'S GUIDE KASPERSKY® MAIL GATEWAY 5. 5 Administrator's Guide © Kaspersky Lab http://www. kaspersky. com Revision date: June, 2006 Contents CHAPTER 1. KASPERSKY® MAIL GATEWAY 5. 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What's new in Kaspersky Mail Gateway 5. 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Licensing policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Additional informational header fields in messages Application allows addition of some supplementary information to mail messages. Let us examine closer two methods of adding new informational header fields to a message: · Add extension header field to mail message. The information may describe application version, date when the antivirus databases were last updated, time and result of message scanning (determined by the AddXHeader parameter in the [smtpgw. policy] section of the application configuration file). Header format: X-Anti-Virus: <product name and version>, bases: <date of the last update to anti-virus databases in YYYYMMDD format> #<the number of records in AV databases>, check: <scan date in YYYYMMDD format> <scanning status or not_checked> E. g. : X-Anti-Virus:Kaspersky Mail Gateway for Linux GLIBC 2. 2 version 5. 5. 58/RELEASE, bases: 20041101 #102746, check: 20041210 clean · Add disclaimer text to mail message body. The information will be added as plain text; it may contain any statement generated in accordance with the security policy (or other rules) of a specific organization (the AddDisclaimer parameter in the [smtpgw. policy] section). The default message text notifies that the message has been scanned by Kaspersky Mail Gateway. Upon administrator's demand the application can modify the information format (e. g. , generate disclaimer message as a HTML text). CHAPTER 7. TESTING APPLICATION OPERABILITY After you install and configure Kaspersky Mail Gateway, it is recommended that you test its settings and operability by using the following three methods: · · · Telnet program Mail messages containing test phrases in the Subject header EICAR test virus. 7. 1. Testing the application using Telnet To test the application operation using Telnet it is necessary to: 1. Configure the connection to the server with the installed application using Telnet. To do so, enter the following in the command line: telnet <smtpgw host address> <port> where the host address and port are values assigned to the ListenOn option in the [smtpgw. network] section of the application configuration file. After the connection is established, wait for a response from the smtpgw component. You will see the following information: 220 smtpgw. company. com ESMTP where smtpgw. company. com is the name of the server being tested. After the connection to the server is confirmed, type the following in the command line: EHLO <fqdn> where <fqdn> stands for a full domain name of the host, which establishes connection. You will see the following (or similar) information: 82 Kaspersky® Mail Gateway 5. 5 250-smtpgw. company. com hello user [127. 0. 0. 1] 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 10485760 250 DSN where: smtpgw. company. com is the name of the server being tested user is the client host name [127. 0. 0. 1] is the client IP address. Enter in the command line: MAIL FROM: <sender_address> You will see the following (or similar) information: 250 2. 1. 0 OK Enter in the command line: RCPT TO: <recipient_address> You will see the following (or similar) information: 250 2. 1. 0 OK Enter in the command line: DATA You will see the following (or similar) information: 354 Start mail input; end with <CRLF>. <CRLF> Enter in the command line: Subject: test test . If the response is 250 2. 1. 0 OK, the test message has been successfully accepted by the server. After this, the message must be checked by Spamtest, scanned for viruses and then sent to the recipient in accordance with the routing table. To verify the results, view the Testing application operability 83 application statistics. One message will be added to the totals of scanned and sent messages. 7. 2. Testing the Spamtest filter In order to test the Spamtest filter functionality, you have to create email messages containing specific phrases in the Subject header. Table 4 below contains a summary of test phrases and Spamtest responses thereto. [. . . ] It shall be at the absolute discretion of Kaspersky Lab whether or not you have satisfied this condition for the provision of Support Services. (ii) Support Services will terminate unless renewed annually by payment of the then-current annual support charge and by successful completion of the Support Services Subscription Form again. (iii) By completion of the Support Services Subscription Form you consent to the terms of the Kaspersky Lab Privacy Policy, which is deposited on ww. kaspersky. com/privacy, and you explicitly consent to the transfer of data to other countries outside your own as set out in the Privacy Policy. (iv) "Support Services" means: (a) Daily updates of the anti-virus database; (b) Free software updates, including version upgrades; (c) Extended technical support via e-mail and phone hotline provided by Vendor and/or Reseller; (d) Virus detection and disinfection updates 24 hours per day. [. . . ]