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Exim Advanced SMTP Routing

 

 

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michael at tradepage

Feb 6, 2007, 3:14 AM

Post #1 of 2 (225 views)
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Exim Advanced SMTP Routing

Hi,



I have an interesting scenario and was wondering if anybody has done
anything alike.

I want to setup a Router within my exim.conf to deliver to a remote host,
then if this fails try another host and then last but not least try the
dnslookup method.



However If exim connects to any of the remote hosts, and they reply with a
550 Relay denied error exim automatically bounces the message back to the
recipient, is there no way I can force exim to try another router instead of
bouncing this immediately?






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Kind Regards,


Michael da Silva Pereira




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hs at schlittermann

Feb 6, 2007, 3:52 AM

Post #2 of 2 (189 views)
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Re: Exim Advanced SMTP Routing [In reply to]

Michael da Silva Pereira <michael [at] tradepage> (Di 06 Feb 2007 12:14:36 CET):
>
> I have an interesting scenario and was wondering if anybody has done
> anything alike.
>
> I want to setup a Router within my exim.conf to deliver to a remote host,
> then if this fails try another host and then last but not least try the
> dnslookup method.
>
> However If exim connects to any of the remote hosts, and they reply with a
> 550 Relay denied error exim automatically bounces the message back to the
> recipient, is there no way I can force exim to try another router instead of
> bouncing this immediately?

I think we had this discussion here already. I asked some similar
question. My attempt was to use some fallback host in case of 5xx
in some other router.

I understood that it doesn't work. 5xx is definitive and final and
permanent and the mail should bounce. (This doesn't mean that I agree
with this theory ;-)

May be you can setup something with condition = ${run{....}}
and run a test in advance.

Best regards from Dresden
Viele Grüße aus Dresden
Heiko Schlittermann
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