On Wed, Mar 09, 2011 at 02:22:15PM +0000, Katzir, Igal wrote: > Thanks Wietse, > > In order to run multiple postfix instances on a single host, > I read in the http://www.postfix.org/MULTI_INSTANCE_README.html that we need > to upgrade the Postfix to 2.6 and preferably to 2.7.3
You can run multiple instances of Postfix even with Postfix 1.0, you just need to handle the start/stop/... and instance creation manually. The multi-instance tooling is primarily intended to integrate with vendor distributions that already start the primary instance of Postfix, and use that to start the entire stack. Of course now that it's done, all the vendors are re-designing system start-up... :-) -- Viktor.