Jason White <jason(a)jasonjgw.net> writes:
What would others recommend these days as an anti-spam
tool, suitable for
integrating into a Postfix/Dovecot configuration?
My experience: Spamassassin Dspam CRM114
These are all post-DATA. You should be rejecting as much as possible
BEFORE then, using postscreen, a null MX, a tarpit MX, and so on.
Here post-DATA filtering is opt-in, because only managers need it.
They get crm114 which is pretty ordinary because our dovecot1 and their
mutt MUA don't support the hooks to recognize "I'm moving the mail into
Spam folder", so instead there's a nightly cron job that looks for mail
with an mtime of "a couple of days ago" and processes that. It's pretty
ugly, but they seem to be very happy with the results.