> >I would like to start blocking emails with 50% or more HTML content. > >I see that spamassin has this feature. > >Is there a setting in Imgate that will do this? > >no
and if you install spamassassin as a content-filter, this changes the behaviour of IMGate since it SA will receive the entire DATA command (rather than postfix smtpd rejecting after RCPT TO:) for every message, so there is a huge hit in IMGate CPU+disk, but the huge hit in bandwidth. The best is to run SA as an smtp policy server, see the postfix policy README, and to run SA on a second instance of postfix. 1. IMGate postfix receives mail as now, rejects as now, and relays to 2. second postfix + SA as smtpd policy for content scanning. You can do this on one machine or two machines. Len
