smtp-auth from exim4 client to exim4 server

[Marc Haber]

On Sun, Sep 16, 2007 at 10:26:56PM +0200, Rainer Dorsch wrote:
> Surprisingly for me the difficult part was to configure and exim4 client to 
> connect to this exim4 server via SMTP-auth. The reason for that was that my 
> server FQDN is not the primary DNS entry

I have the same setup here:
$ host 85.214.68.41
41.68.214.85.in-addr.arpa domain name pointer torres.zugschlus.de.
$ host torres.zugschlus.de
torres.zugschlus.de has address 85.214.68.41
$ host 85.214.68.41
41.68.214.85.in-addr.arpa domain name pointer torres.zugschlus.de.
$

> I found in the manpage for exim4-config_files that I have to use the reverse 
> DNS, in my case vd032097.korypet-solutions.com in passwd.client.

Right, that is still necessary.

>  That still did not make it working for a long time. Much later I
>  found out by trial and error that I also have to use the reverse DNS
>  entry as smarthost

That is not necessary. I cannot reproduce your issue on my system; as
long as torres.zugschlus.de is listed in passwd.client, my exim
(4.67-8 from unstable) authenticates just fine regardless whether my
smarthost is set to mailgate.zugschlus.de or torres.zugschlus.de.

That being said, I feel that it would be useful to have this
discussion in a researchable medium, such as pkg-exim4-users or in a
Debian bug report.

Greetings
Marc

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