Thanks for the tips, Gordon.

I was planning on using dspam with a global dictionary that was previously 
fed corpus. You are absolutely right if it doesn't get enough training it 
will be useless.

> I've been blacklisting based on the spamhaus Zen list (in esmtpd) for
> most of my customers, universally increasing the score for the SURBL
> tests and spamhaus tests in spamassassin, and using Razor, Pyzor and DCC
> with very good results.  Spamassassin does all of the tests, and is
> called from pythonfilter.  I add these lines to local.cf:

I have a question about this... I've seen in the past filters getting hung 
because of spamhaus or razor. If the spamhaus or razor/pyzor/dcc servers are 
not available, how does that affect courier? If a lot of messages come in 
and every message is getting hung on waiting for a timeout, it will cause a 
significant backup of the mail queue. At least I've seen this in the past, I 
don't know if anything has been done to resolve that. So I've been staying 
away from those recently.

Do I need to do anything special for setting up razor/pyzor/dcc?

Ricardo 


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