Thus wrote Marc Haber ([email protected]):

> On Mon, 8 Oct 2012 00:02:54 +0200, Martin Kaiser <[email protected]>
> wrote:
> >When I send a mail to [email protected] a copy to
> >[email protected] is created. However, when mails to
> >[email protected] can be delivered but mails to [email protected]
> >can't (temporary problem), the entire mail ends up in the queue.

> Can I see an exim -bp example of such a mail? I would expect the
> recipients to be handled as if the message was sent to both addresses,
> with both being delivered individually.

on the MX host that handles the redirected address, I forced a 451 by
routing [email protected] to :defer:

root@host:~# exim4 -bp

 0m   801 1TLgkl-0006MD-Ai <[email protected]>
          [email protected]

-> the redirect address does not appear anywhere

> >When [email protected] becomes available some time later, the entire
> >mail is re-sent. In other words, [email protected] receives the mail
> >twice.

> I would like to see log entries for that.

2012-10-09 20:50:11 1TLgkl-0006MD-Ai <= [email protected] 
H=p54b09fd0.dip.t-dialin.net (blabla.kaiser.cx) [xx.xxx.xxx.xxx] P=esmtpsa 
X=TLSv1:AES256-SHA:256 A=authCramMD5:martin S=801 
[email protected]
2012-10-09 20:50:12 1TLgkl-0006MD-Ai == [email protected] 
<[email protected]> R=dnslookup T=remoteSmtp defer (-44): SMTP error from 
remote mail server after RCPT TO:<[email protected]>: host mx.test.xyz 
[xx.xxx.yy.yyy]: 451
2012-10-09 20:50:14 1TLgkl-0006MD-Ai => [email protected] R=dnslookup 
T=remoteSmtp H=mx.address.xyz [zz.zz.z.zz] X=TLSv1:AES256-SHA:256

This is what happens when [email protected] becomes ok again

uuups, I just found out that the mail is re-sent only to
[email protected], this is what I expected.

However, the problem persists if both [email protected] and
[email protected] are relayed to the same "next" server, e.g. both
domains have the same MX. In this case, the mail is sent twice

2012-10-09 21:15:28 1TLh9E-0006qS-MU <= [email protected] H=blabla.my.host 
[x.y.z.a] P=esmtpsa X=TLSv1:AES256-SHA:256 A=authCramMD5:martin S=998 
[email protected]
2012-10-09 21:15:29 1TLh9E-0006qS-MU == [email protected] 
<[email protected]> R=dnslookup T=remoteSmtp defer (-44): SMTP error from 
remote mail server after RCPT TO:<[email protected]>: host mx.test.xyz 
[x.y.y.y]: 451
2012-10-09 21:15:29 1TLh9E-0006qS-MU => [email protected] R=dnslookup 
T=remoteSmtp H=mx.test.xyz [x.y.y.y] X=TLSv1:AES256-SHA:256

[email protected] becomes available

2012-10-09 21:15:52 1TLh9E-0006qS-MU => [email protected] 
<[email protected]> R=dnslookup T=remoteSmtp H=mx.test.xyz [x.y.y.y] 
X=TLSv1:AES256-SHA:256
2012-10-09 21:15:52 1TLh9E-0006qS-MU -> [email protected] R=dnslookup 
T=remoteSmtp H=mx.test.xyz [x.y.y.y] X=TLSv1:AES256-SHA:256
2012-10-09 21:15:52 1TLh9E-0006qS-MU Completed

Best regards,

   Martin

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