How do I teach Spam Assassin?

[John Lagrue]

Charles Howse wrote:
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> On Saturday 13 March 2004 02:36 pm, John Lagrue wrote:
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>>Charles Howse wrote:
>>
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>>>On Friday 12 March 2004 04:46 pm, Christofer C. Bell wrote:
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>>>>I've been collecting spam email that's gotten past my Fedora Core 1
>>>>installation of spam assassin (spamassassin-2.63-0.2) and I'd like to
>>>>"teach" spam assassin about these messages (update the heuristics to be
>>>>able to filter these messages that are getting past the filter by
>>>>default).
>>>>
>>>>Someone posted a command that does this on the list some time ago and
>>>>I've unfortunately lost that message.  How can I teach spam assassin
>>>>(system wide) about this email?  Thanks!
>>>
>>>man sa-learn will give you the details.
>>>Using KMail, I use the following to teach:
>>>sa-learn --spam --dir /home/charles/Mail/.Spam.directory/MissedSpam/*
>>
>>That does it if spamassassin in running on a per-user basis. However the
>>original question is how do we do this on a system-wide basis? Like, for
>>example, on my system where I filter ALL incoming mail with spamd before
>>sorting it into users' mailboxes. How in this case do I teach SA?
> 
> 
> Whoops!  Excuse me for not reading the original question properly.
> 
> In your case, each user will be getting missed spam in their "inbox", correct?
> 
> The only thing that I can think of is for each user to have a "MissedSpam" 
> folder, and be trained to move all spam to that folder.  You probably don't 
> want to run sa-learn on the inbox, some people never clean it up, leaving old 
> msgs there instead of filing them in a sub folder.
> 
> Then you could write a simple script that loops through each MissedSpam 
> folder, and runs sa-learn.
> 

That won't work. Runnng sa-learn on indivual mailboxes creates (as far 
as I understand it) a set of bayesian rules in the .spamassassin 
directory for that user. But as spamd is running before each user's mail 
is delivered then those rules will never be applied.

I am trying to find out how to create system-wide learned rules for SA.

John