On 2/2/2012 4:39 PM, Alex wrote: > Hi, > > I have a fedora15 installation with postfix-2.8.7 and would like to > throttle the message rate for incoming mail from senders like > constantcontact and other bulk senders. I've read about greylisting, > but I'm not sure what's what I'm looking for, due to the inherent > side-effects. >
The cleanest way to do this is with firewall rules that limit the number of connections from a specific host or limit the bandwidth allotted to them. Anything you do in postfix is likely to severely delay incoming mail. If this is legit mail, what's wrong with accepting it as fast as possible? If your server can't stand the load you should reduce default_process_limit to something your server can handle. -- Noel Jones
