User Guide

88 Kaspersky Anti-Spam 3.0
X-Spamtest-Group-ID: 00000002
X-Spamtest-Group-ID: 00000001
Which indicate that the message was processed in accordance with the
rules defined for groups with identifiers 1 and 2 (identifiers of sales and
managers groups), and the message was assigned SPAM and
Not Detected statuses. For detailed information on the headers, see the
item A.5 on page 112.
• If the message is addressed to several recipients and delivery is
prohibited for some of them (reject message action selected), and for
others is allowed (accept message action selected), then the bounce
message is not sent to the individual recipients;
• Since there is no way to limit the number of simultaneous connections to
the port 25 in Sendmail, then the number of running ap-mailfilter filtering
processes depends on the number of incoming connections, which can
cause additional server load.
A.2.4. kas-pipe – a client module for the
Postfix and Exim mail servers
The kas-pipe module is a universal client module of Kaspersky Anti-Spam and it
can be used for integration with any of the supported mail servers.
In the default installation, kas-pipe is used for integration with Postfix and Exim.
The kas-pipe module accepts mail, and returns it to the mail server after filtering
through the SMTP or LMTP protocols.
Execution of kas-pipe module is initiated by an external application (for example,
mail server). For mail transfer a network or local socket is used. Also, it is
possible to run the accepting application with the fork and exec commands.
The Figure 32 illustrates the module interaction scheme when Kaspersky Anti-
Spam is used with kas-pipe.
Figure 32. The kas-pipe module usage scheme