On Fri, Aug 5, 2011 at 4:13 AM, Bjron Mork <bjron.m...@gmail.com> wrote: > I do have the same concerns, is there any way to implement users bases > sending policies through postfix …
Not really. Postfix accepts messages into one of its queues, and will pick those messages up (depending on its retry formula) and attempt to deliver them. What you want is some brains that will know how many messages to a particular class of message has been sent in a given time window. Say, X-thousand messages to Y-domain from Z-IP. Postfix doesn't do that. PowerMTA does. But then again, that's why most ESPs run with that software, so just go with them instead.
