DAVID HASSILEV: > > Hello, I have tried to search through the list archives but have not found > what I'm looking for so I thought I'd post to the list.
To implement routing policies depending on message size, - Implement a Postfix policy daemon to examine the message size attribute (invoked from smtpd_end_of_data_restrictions). See: http://www.postfix.org/SMTPD_POLICY_README.html http://www.postfix.org/postconf.5.html#smtpd_end_of_data_restrictions http://www.postfix.org/postconf.5.html#check_policy_service - Have the policy daemon respond with "FILTER A:" or "FILTER B:" or "dunno". A and B are the names of smtp client entries in master.cf, each with their own "-o smtp_bind_address=xxx" option. See: http://www.postfix.org/master.5.html (for "-o name=value) http://www.postfix.org/postconf.5.html#smtp_bind_address This requires Postfix 2.7 snapshot 20100117 (or later). To make this work you will also have to tweak the network stack to support two "default" routes to the outside world. I can tell you only the Postfix side. Wietse