Re: [exim] How to return error messages from local transport…

Αρχική Σελίδα
Delete this message
Reply to this message
Συντάκτης: Hans-Juergen Beie
Ημερομηνία:  
Προς: Heiko Schlittermann
Υ/ο: exim-users
Αντικείμενο: Re: [exim] How to return error messages from local transports (LMTP)?
Heiko Schlittermann wrote on 18.08.2005 0:35:
> 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?


If you don't want do accept such messages at all you can reject them in
the acl_smtp_data section before any routers or transports. For example

# Check for NUL characters
   deny message = Body contains $body_zerocount NUL charcter(s)
        log_message = Message denied, \
                      body contains $body_zerocount NUL charcter(s)
        condition = ${if >{$body_zerocount}{0}{1}{0}}





>     Best regards from Dresden
>     Viele Grüße aus Dresden
>     Heiko Schlittermann


hjb :-?