Katzir, Igal: > Hi Postfix Users, > > We are running a couple of postfix servers version 2.3.x which > mainly relay notification messages to our customers. > The various application servers which trigger notifications are > not consistent so we are rewriting the mail <from> field with > these two tables: > sender_canonical_maps = hash:/etc/postfix/mail_rewrite > smtp_generic_maps = hash:/etc/postfix/generic > > Now the problem: > We have one customer which host the application for his partners > so he wishes that all mail coming from this specific app. Server > will have a fixed address. > Can I create a rule where all mail coming from one / two servers > will have a specific <from> address?
The simplest is to set up a dedicated Postfix instance on a dedicated IP address, with sender canonical mapping to a fixed sender address. http://www.postfix.org/MULTI_INSTANCE_README.html makes the first part easy. For the second part, use "sender_canonical_maps = regexp:/some/where/mail_rewrite.regexp", with contents like: /./ REPLACE usern...@example.com Wietse
