>I thought that when postfix rejects an email in the >smtpd_recipient_restrictions it sends an email to sender notifying them = >that their message got rejected for whatever reason.
nope >there is a lot of restrictions there, (under that umbrella) >and we config our IMGates a little differently for our sites needs but mine >rejects and sends a bounce notice >RBLs >headerchecks as well non-delivery messages are new messages generated by the mailer daemon when it can't deliver an accepted msg. The original message is lost, but it (or part of it) may be included in the mailer-daemon message. But if postfix SMTPD rejects, the only notification that "goes back" is the 4xx/5xx optional custom text. That is not a new msg from postfix, it is just a response code to the sending MTA. That sending MTA should generate a mailer-daemon non-delivery msg, which should include the postfix 4xx/5xx text. But that is still not a "message" from postfix. Len
