Where can I tell exim to run a shell/php command everytime a new mail has been delivered to a virtual mailbox. It does not matter to which user the mail is delivered?


You want to look at shadow_transport.

For local deliveries (only), if delivery succeeds and the Transport references another Transport in its shadow_transport option, then that second transport will also be invoked.

You'd then have that second Transport be a driver = pipe transport.


  driver = appendfile
  directory = ...blah blah whatever ...
  # various other maildir extension options if needed
  shadow_transport = audit_delivery

  driver = pipe
  command = /some/path/to/some/command with some options
  user = audituser
  group = mail

Given that you apparently have a real user to deliver to, you probably want to look into using a .forward file, or possibly procmail if you want to get a bit fancier (such as if you only want to run the command for a subset of messages delivered to the user).

  • Unfortunately I am having a multi user/domain system via exim4/mysql/courier-imap I meant with local user, that this user is terminated in my system. But it should be called disjunct from the user recieving the mail.
    – user28047
    Dec 28 '09 at 19:51
  • "local user" has very specific meaning with MTAs, you might want to edit your question to say "virtual mailbox" if you're running that sort of system.
    – womble
    Dec 28 '09 at 22:52
  • thx, I have corrected the question.
    – user28047
    Dec 30 '09 at 12:29

The easyest way I found was creating a new router afterwards delivering to the local users containing:

        driver = accept
        transport = run_script

So, the mail is still handeld the way it should be and my script is running, with the right transport f.e.:

        debug_print = "T: run_script for $local_part@$domain"
        driver = pipe
        path = "<path>"
        command = "<command to be run>"

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