Re: [Exim] Should I allow "MAILER-DAEMON@" as a sender witho…

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Autor: Ralf G. R. Bergs
Datum:  
To: Dave C.
CC: exim-users@exim.org
Betreff: Re: [Exim] Should I allow "MAILER-DAEMON@" as a sender without verification?
On Mon, 26 Aug 2002 13:13:59 -0400 (EDT), Dave C. wrote:

>> >> sender verify fail for <MAILER-DAEMON@???>:

response
>> to
>> >>     "RCPT TO:<MAILER-DAEMON@???>" from fw-btv-
>> rz.bayernoil.de
>> >>     [62.153.86.59] was 550 Mailbox unavailable: This site may not be

used
>> as a
>> >>     relay agent.

>> >>
>> >> Should I always accept senders of MAILER-DAEMON@ without verifying that
>> they
>> >> really exist, or can one say that the sender's MX is broken if it

doesn't
>> accept
>> >> mail to MAILER-DAEMON@ and thus I should NOT change my Exim

configuration?
[...]
>> Do I understand you correctly that you are suggesting I ALWAYS accept

messages
>> from MAILER-DAEMON@anydomain without verification?
>
>Not messages with an _envelope_ sender of MAILER-DAEMON@... But you
>should'nt reject a message merely becuase its headers contain
>MAILER-DAEMON@...


Of course I wouldn't do such a thing -- please see my original question above.

>> >If this site wants to send mail with an envelope sender of
>> ><MAILER-DAEMON@theirdom>, then they have to be prepared to accept a
>> >bounce message in return to that address (where exim will properly use
>> ><> as the env sender), if that message was underliverable at your site.
>>
>> And that means what in my case?
>
>I wouldnt do anything special. If the address doesnt veryfy ( and you
>want to verify addresses ) then dont accept them.


Ok, that's easy enough. :-)

>Its really up to you..


Sure, but I'd like to Do The Right Thing(TM), and I wasn't sure what to do in
these "esoteric" cases. :-)

Thanks,

Ralf


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