Spamassassin: Difference between revisions
From wiki
initial draft |
Add Bayes training |
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{{WIP}} | |||
edit file <code>/etc/spamassassin/local.cf</code> | edit file <code>/etc/spamassassin/local.cf</code> | ||
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<syntaxhighlight lang="console"> | <syntaxhighlight lang="console"> | ||
# mkdir /var/lib/spamassassin/bayes_db | # mkdir /var/lib/spamassassin/bayes_db | ||
</syntaxhighlight> | |||
== Training == | |||
To reach a good efficiency, SpamAssassin Bayesian filter need to be trained with both spam and ham messages. You can use your actual mailbox for that but note the following points: | |||
* Be sure that the folders you use for training contain only spam or ham. If a folder contain a mix of them, SpamAssassin will learn wrong info and produce bad quality results | |||
* To be effective you need between 1000 and 5000 messages each of both spam and ham. | |||
* You need to have more ham than spam to train. Otherwise, SpamAssassin might become biased toward spam. | |||
<syntaxhighlight lang="console"> | |||
# sa-learn --spam --showdots --dir /var/maildir/<username>/Maildir/.Spam/cur/ | |||
# sa-learn --ham --showdots --dir /var/maildir/<username>/Maildir/cur/ | |||
</syntaxhighlight> | </syntaxhighlight> | ||
Revision as of 06:49, 4 March 2016
 Warning: | This page is a work in progress and is not completed. Important informations might be missing or wrong. |
edit file /etc/spamassassin/local.cf
bayes_path /var/lib/spamassassin/bayes_db/bayes
bayes_file_mode 0770
# mkdir /var/lib/spamassassin/bayes_db
Training
To reach a good efficiency, SpamAssassin Bayesian filter need to be trained with both spam and ham messages. You can use your actual mailbox for that but note the following points:
- Be sure that the folders you use for training contain only spam or ham. If a folder contain a mix of them, SpamAssassin will learn wrong info and produce bad quality results
- To be effective you need between 1000 and 5000 messages each of both spam and ham.
- You need to have more ham than spam to train. Otherwise, SpamAssassin might become biased toward spam.
# sa-learn --spam --showdots --dir /var/maildir/<username>/Maildir/.Spam/cur/
# sa-learn --ham --showdots --dir /var/maildir/<username>/Maildir/cur/
