14.2.1 Loading and Configuring the Spam Filtering Software Client Library

Each spam filtering program is expected to provide a client library file and configuration file for Messaging Server. Loading and configuring the client library involves two things:

• Specifying the spam filtering software library path (spamfilterX_library) and configuration file (spamfilterX_config_file) in the option.dat file. In addition to these options, there are a number of others used to specify spam filtering LDAP attributes, as well as the Sieve actions to use on spam messages.

• Specifying the desired options in the spam filtering software configuration files. Each spam filtering program has a different configuration file and configuration options. These are described in the spam filtering software sections, as well as in the filtering software documentation. See 14.3 Using Symantec Brightmail Anti-Spam and 14.5 Using Symantec Anti-Virus Scanning Engine (SAVSE)

14.2.1.1 Specifying the Spam Filtering Software Library Paths

Messaging Server can call up to eight different filtering systems for your messages. For example, you can run your messages through both the Symantec AntiVirus Scan Engine and SpamAssassin. Each filtering software is identified by a number from 1 to 8. These numbers appear as part of the various spam filter options, LDAP attributes, and channel keywords; an X is used as a filter identification number. For example, sourcespamfilterXoptin or spamfilterX_config_file. If the identifying number is omitted from the keyword or option name it defaults to 1.

The following option.dat settings specify Messaging Server to filter messages through both Symantec AntiVirus Scan Engine and SpamAssassin:

spamfilter1_library=Symantec_Library_File
spamfilter1_config_file=Symantec_Config_File
spamfilter2_library=SpamAssassin_Library_File
spamfilter2_config_file=SpamAssassin_Config_File

When using other options or keywords to configure the system, use the corresponding number at the end of the option or keyword. For example, sourcespamfilter2optin would refer to SpamAssassin. sourcespamfilter1optin would refer to Symantec AntiVirus Scan Engine. It is not necessary to use numbers sequentially. For example, if you want to temporarily disable the Symantec AntiVirus Scan Engine, you can just comment out the spamfilter1_library configuration file.