> The premium Antispam in the server does not catch much spam. I update
> the AntiSpam every day, but the number of spam not being caught is
> ever increasing. Does anybody have a workaround?
I have an OpenBSD server with postfix running as a incoming gateway MTA
(i.e. the IMGate approach) which greatly reduces the amount of mail that
IMail has to handle.
We just ran a report on some very high-volume IMGate servers (several
100K legit msgs/day). Using only reject unknown recipients, SAV, and
greylisting (ie, no RBLS, no content-scanning, etc), the reject rate
was 71%, which takes a huge load off the more expensive
content-scanning machines, which could be either a second rank of
dedicated boxes or a loaded-up mailbox server like IMail.
Len
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