[exim] How to return error messages from local transports (L…

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Συντάκτης: Heiko Schlittermann
Ημερομηνία:  
Προς: exim-users
Αντικείμενο: [exim] How to return error messages from local transports (LMTP)?
Hello out there,

[ exim 4.51 ]
in our environment we deliver messages via LMTP (via socket)
to the cyrus mail system. From time to time mails bounce with
quite unspecific error message:


This message was created automatically by mail delivery software.                                                                       
A message that you sent could not be delivered to one or more of its                                                                  
recipients. This is a permanent error. The following address(es) failed:                                                                                   
  xxx@localhost
  (generated from xxx@???)



Looking for the Message-ID I found in the log file:
        "LMTP error after end of data: 554 5.6.0 Message contains NUL characters"


I'd like to return this error to the sender. How?


    Best regards from Dresden
    Viele Grüße aus Dresden
    Heiko Schlittermann
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