Email problem undeliverable

[Michael Schwendt]

On Thu, 23 Sep 2010 08:51:33 -0700, Daniel wrote:

> Additional info that I received:
> 
> This is the mail system at host lists.fedoraproject.org.
> 
> I'm sorry to have to inform you that your message could not
> be delivered to one or more recipients. It's attached below.
> 
> For further assistance, please send mail to <postmaster>
> 
> If you do so, please include this problem report. You can
> delete your own text from the attached returned message.
> 
>                    The mail system
> 
> <users at lists.fedoraproject.org>: mail forwarding loop for
>     users at lists.fedoraproject.org
> 
> <context of email message here>

The part you deleted (=> "context of email message here") is the
interesting one, since it includes the headers of the message that
caused trouble. There's some server in Germany involved.