On 06/04/2013 15:01, Wietse Venema wrote > There must be other solutions that can work with a fixed memory > budget and that can push excessive mail to a "low-priority" queue > that is processed when it does not interfere with other delivery. > > Any solution that requires knowledge of THE COMPLETE MAIL QUEUE > will be firmly rejected. I will not allow a built-in limitation on > the amount of mail that Postfix can handle. > (if i understood correctly the needs of Giorgio) Can be the following points the way to obtain round-robin delivery based on sender address/ip?
1. change the "incoming queue" directory structure indexing sub-directories with a per-sender index 2. changing the algorithm used by qmgr to move email from "Incoming" to "Active" queue, (a foreach over subdirs) This increases disks i/o but you can obtain a pretty fair delivery between senders -- Simone Caruso IT Consultant +39 349 65 90 805