Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I am getting huge amount of these in my mail log, and unable to find its originator. What could be the reason? Here is log entry:

postfix/cleanup[9626]: 4413082E40: message-id=<20140220102521.4413082E40@mail.mmnc.co.uk>
postfix/qmgr[9367]: 4413082E40: from=<double-bounce@mail.mmnc.co.uk>, size=255, nrcpt=1 (queue active)
share|improve this question
Have you added or changed anything recently? If things like content_filters, or milters are not functioning correctly, you can see errors similar to this. –  NickW Feb 20 at 10:49
nothing changed –  Farhan Feb 20 at 10:55
Can you grep out all examples of that message-id ? –  NickW Feb 20 at 11:25
@Farhan : Mmmh... looks like two different process with different purposes log the message they handle one time each. Splitting the log of "cleanup" and "qmgr" can be temporary workaround. –  user2284570 May 3 at 11:22

1 Answer 1

The double-bounce messages are used by postfix for address verification.

You may find more detail here...


share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.