PureMessage is distributed with a pre-configured
set of anti-spam rules used to identify spam messages. Updates containing refined
anti-spam heuristics are published frequently.
Rules are grouped together by function into feature groups. These groups are enabled or
disabled from the Anti-Spam Options page. The individual rules are
enabled or disabled on the Anti-Spam Rules page.
You can enable and disable existing rules, or create custom rules.
Note: Sophos does not recommend adjusting anti-spam rules because they are automatically
updated by SophosLabs on a regular basis. It is also advised that you consult with
Sophos support before attempting to create any new anti-spam rules. If you are receiving
false positives or false negatives, Sophos asks that you forward these messages to
SophosLabs for our analysts to investigate. See "PureMessage Feedback" in the
Contacting Sophos section for more information.