Author: Ian Date: To: users Subject: Re: [bitfolk] Spam overwhelming my mail server
ed said:
> Alternatively, you could try greylising, 4xx the sending mail server IP
> for thirty minutes on the first mail seen from it, then allow it. Often
> this helps as most exploited spam sources don't queue.
Greylisting is my solution. So little gets past it that I don't bother
with spamassassin. Occasionally, a handful come via a spammer who does
follow RFCs, but Thunderbird's spam filtering gets them.
postgrey is the package if you're using Postfix on Debian. New sources
are told 'not yet' for - I think - ten minutes. If they try again after
that, they get through. But the logfiles are full of spambots that don't
bother.
