Bounces
---
This is the mail system at host xyz.
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
<
admispconfig@localhost.localdomain>: Host or domain name not found. Name
service error for name=localhost.localdomain type=AAAA: Host not found
---
Jetzt bekomme ich immer solche Bounces (und zwar nicht gerade wenig)! Was kann ich tun (bzw. muss ich tun), damit die Mails korrekt zugestellt werden?