On Wed, Mar 31, 2010 at 08:16:28AM +1300, Mike Hutchinson wrote: > > What version of Postfix is this? > > Postfix mail_version = 2.5.1
The rate control features introduced in 2.5.0 were improved in later patches, you must upgrade to the latest 2.5 release if you want to enforce inter-message delays. -- Viktor. P.S. Morgan Stanley is looking for a New York City based, Senior Unix system/email administrator to architect and sustain our perimeter email environment. If you are interested, please drop me a note.