spam learning on gateway

[Chris Connell]

Hi
We are running spamassassin with mailscanner on our email gateway (solaris
9). Some spams are getting through past spamassassin, although it catches
most of them. The users forward me the spam to block. (Local users are on ms
exchange)

I thought of an idea to use the bayes learning feature in spamassassin as
follows

- users would forward the spam mail they get to a folder on the gateway
- I would run sa-learn on the folder every hour.

I have already seen a possible problem with this in that our exchange server
adds a footer on each mail, Im worried this would then tag all our outgoing
mail as spam, but Im not sure exactly how sa-learn works.

Could someone give me advice on whether this is a good idea or not? I know
there is the problem of using bayes on an email gateway as you have the
problem of what is spam for some users and what is not spam. If so any
suggestions how to get round this problem would be appreciated.
Thanks



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