On 30/11/15 18:01, Reindl Harald wrote:
Am 30.11.2015 um 18:30 schrieb Sebastian Arcus:
spamassassin -D < /path/to/spam-example.eml
Thank you Harald. I did - and it looks like SA does contact lots of
DNSBL's and it receives various messages in reply. Nothing that looks
like failures or errors. I can attach the output here - but it is a lot.
Would this mean that the DNSBL's are working correctly in my setup - but
spammers somehow manage to keep on sending from "clean" domains all the
time - and I should look into some other way of stopping this type of
spam? The messages I'm talking about are typical spam, with one or two
sentences in the email body and one or two links - usually advertising
life insurance, solar panels and similar. None of them are from proper
companies or entities I have ever dealt with
you main problem is that bayes is not working because there are no
BAYES_xx tags in your headers - collect as many as possible clear spam
*and* clear ham samples, you need at least 200 ham samples to start
bayes used
Thank you for that. Bayes was enabled, but looking closer at the debug
output, it wasn't used as there weren't enough tokens/samples. Although
I've been training it for years, it never really worked as the training
was done as root, while the spam filtering is done as another user -
separate databases used, wrong permissions etc.. After setting up a
site-wide bayes database as per the wiki instructions and fixing file
permissions etc., and feeding it about 300 spam messages (I don't get a
lot of spam in general) and 12,000 ham messages of my own hand sorted
email, the score for the same sample spam message I mentioned in my
original post jumped from 1.4 to 104.5 !!
I had no idea that bayes filtering can have such a dramatic effect on a
message with only a small amount of text in it! I will probably need to
keep an eye on things and follow through with more tweaking and try and
implement your other suggestions - but at the moment the difference it
makes is dramatic. Thank you.
