F-SECURE ANTI-VIRUS FOR MICROSOFT EXCHANGE 6.62 -, Руководство администратора

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CHAPTER 8 333
Administering F-Secure Spam Control
When the heuristic spam analysis is disabled,
only the threat detection engine scans inbound
mails for spam.
Heuristic spam analysis slows down the
performance but improves the spam detection
rate.
Spam filtering leve l Specify the spam filtering level. Decreasing the
level allows less spam to pass, but more regular
mails may be falsely identified as spam.
Increasing the level allows more spam to pass,
but a smaller number of regular e-mail
messages are falsely identified as spam.
For example, if the spam filtering level is set to 3,
more spam is filtered, but also more regular
mails may be falsely identified as spam. If the
spam filtering level is set to 7, more spam will
pass undetected, but a smaller number of
regular mails will be falsely identified as spam.
The allowed values are from 1 to 9.
The spam levels are determined by calculating
points for each e-mail. The spam scanning
involves a large number of different rules, which
give each e-mail different points depending on
the mail content and header information. These
points are then calculated to a number between
1 and 9, which defines the likelihood of the
message being spam.
Action on spam
message Specify the action to take with a message
considered spam.
Let message pass through - The product allows
the message to pass through.
Quarantine message - The product places the
message into the quarantine folder.