User Guide

60 Kaspersky Anti-Spam 3.0
• Max. idle time (in seconds) – maximum time (seconds) during which a
filtering process may remain idle. If a filtering process receives no mail
messages for analysis within the specified interval, it discontinues its
activity. Default value: 300.
• Exit delay (in seconds) – maximum duration (seconds) of the delay
before termination of a filtering process after it receives a command to
stop. By default, the parameter is set to 0. It means that after arrival of a
respective command all filtering processes terminate immediately after
processing of the current message.
Figure 20. Parameters of the filtering processes
4.5.4. Spam recognition parameters
The Settings → Anti-Spam Engine → Check Options page (see Fig. 21)
contains the recognition parameters for the ap-mailfilter filtering processes:
• Number of 'Received' headers to be parsed while retrieving ip
address (for use in DNSBL checks) – parameter indicating that the
application must check intermediate servers using DNSBL. As a rule,
when the filter checks the sender's IP address, it uses for that purpose
the IP of the server, from which the message arrived at the filtering
server. However, if the message in transit passes one or several
intermediate servers, the original sender's IP turns out to be hidden. To
check the IP addresses of intermediate servers as well as the final one,
use this parameter to specify the number of relay servers to check.
Analysis will use the Received headers. The 0 value means that the
application will not analyze the Received headers.