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Users
A general user list. Please post your questions to this list. Developers and members of the PMC monitor this list and answer questions as time permits. You must be subscribed to the list with the email address you use to post to it.
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- Archives: Apache MarkMail GMANE Mail-Archive MARC Nabble
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Dev
For those involved in the development effort to discuss their work on the project. Unless you are working on a patch to SpamAssassin, this is probably not a list you need to use. If you're not already on the general users list, you should probably go there first 
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- Archives: Apache MarkMail GMANE Mail-Archive MARC Nabble
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Commits
For SVN and Wiki change messages. If you don't know what they are, you don't want to be on this list, and if you're not already on SpamAssassin-users, you should probably go there first
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RuleQA
The RuleQA list is for people involved in the project's automated rule generation and related technologies including masscheck.
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Security Issues
We treat security-related issues specially. If you believe you have discovered a security issue related to SpamAssassin, please send a mail to security at spamassassin.apache.org with full details.
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