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Identifying spam messages using the heuristic
antispam engine
You can activate the heuristic antispam engine to detect spam. The heuristic
antispam engine performs an analysis of the entire incoming email message,
looking for key characteristics of spam. It weighs its findings against key
characteristics of legitimate email and assigns a spam score (1-100) to show how
certain it is that the message is spam. The higher the spam score, the more
probable it is that the message is spam. This score, in conjunction with the
engine sensitivity level (1=low, 5=high), determines whether a message is
considered spam.
Note: The default sensitivity level for the heuristic antispam engine is 1.
Increasing the sensitivity level may result in more false positives.
You can configure the handling of spam based on this score. You initially set the
engine sensitivity level and spam score values. You may need to adjust these
settings after you analyze your results over a period of time.
To identify suspected spam messages using the heuristic antispam engine
1
On the Symantec Mail Security for SMTP administrative interface, in the
left pane, click Anti-spam Policy.
Identifying spam messages using the heuristic antispam engine
Setting your antispam policy
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