Stuart Bailey stuart@linusoft.co.uk
Does anyone know if Postfix can detect outgoing SPAM, or more specifically bulk emails? I think a way to restrict or limit a hosted domain to sending only a few emails per hour would solve my problem.
You could route the outgoing side of postfix through a spam scanner like amavis just like the incoming side often is, but I think rate limits can be set through the anvil. See TUNING_README, man anvil and man 5 postconf from the postfix packages.
This sort of thing is where I start reaching for exim4 though...
Hope that points in the right direction,