[ERLEDIGT] Empfang von Mails

[vienna1]

Ich bekomme folgende Meldung wenn ich versuche eine Mail an diese Adresse zu schicken.

This is the mail system at host xxxxx.de.

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

<support@xxxxx.de>: unknown user: "support"


Ich kann jedoch mails mit der support@xxxxx.de versenden.