Re: [Exim] "550 cannot route to sender address" from remote …

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Author: Alan J. Flavell
Date:  
To: Exim users list
Subject: Re: [Exim] "550 cannot route to sender address" from remote smtp. now what?
On Sun, 12 Oct 2003, Andreas Metzler wrote:

> lists.s.o needs either an A or an MX record


Yes...

> (or a CNAME resolving to an A or an MX record.).


That's exactly what it has right now, as far as I can see (what did
_you_ find when you checked before posting?): and my assumption is
that's exactly why it's not working.

A CNAME is no substitute for an MX record: it'll give an impression of
working, part of the time, but it ain't right, nevertheless.

lists.surprising-enterprises.de. 258262 IN CNAME surprising-enterprises.de.

lists.surprising-enterprises.de is an alias for surprising-enterprises.de.
                                ^^^^^^^^^^^^^^^


surprising-enterprises.de mail is handled by 10 mail.tomster.org.