On Fri, Apr 09, 2010 at 08:44:52PM +0200, Michael Monnerie wrote: > > Example: > > messages X and Y arrives and are put on HOLD > > after analyzation, we know we should prepend a header A to message > > X, and route message Y to destination backup
Deliver the mail out of the Postfix queue to a system that manages such delayed email. When the mail is ready to go, re-submit it back into Postfix. The system, can be an SMTP or LMTP server that queues some mail, and possibly proxies other mail right back to Postfix in real-time. With LMTP you can handle each recipient separately if that is needed. > The goal of all this is we need to wait several minutes for an external > process before a routing decision can be done. How else could we control > the routing over a long time? -- 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.