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- SpamAssassin SNF4SA Plugin for SNFServer
- README file
-
- Copyright (C) 2009 ARM Research Labs, LLC.
-
- See www.armresearch.com for the copyright terms.
-
- This directory contains the SpamAssassin plugin for SNFServer.
-
- The plugin implements a rule that checks the email message with
- SNFServer.
-
- If SNFServer determines that the email message is spam, then
- SpamAssassin increments the score by an amount that depends on the
- SNFServer result. The amount to add for each SNFServer result is
- specified in the configuration file.
-
- The GBUdb scan result also changes the score by:
-
- abs(p * c) ^ 0.5 * sign(p) * MaxWeight
-
- where p is the probability and c is the confidence returned by the
- GBUdb scan, sign(p) is -1 if p < 0 and +1 otherwise, and MaxWeight is
- specified in the configuration file. If SNFServer is not configured
- to insert the GBUdb scan results into a header in the message, or
- MaxWeight is not specified in the configuration file, then the
- SpamAssassin score is not affected by the GBUdb scan results.
-
- In addition to scanning the message, the plugin inserts headers into
- the email. The SNFServer must be configured to insert the headers
- into the email message. The following headers are copied by the
- plugin into the message if SNFServer is configured to generate them:
-
- 1) 'X-SPAM-MessageSniffer-Scan-Result' contains the body of the
- X-MessageSniffer-Scan-Result header inserted by SNFServer.
-
- 2) 'X-SPAM-MessageSniffer-Rules' contains the body of the
- X-MessageSniffer-Rules header inserted by SNFServer.
-
- 3) 'X-SPAM-GBUdb-Analysis' contains the body of the X-GBUdb-Analysis
- header inserted by SNFServer.
-
- Please see the INSTALL file for installation and configuration.
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