Disable mail for one domain

[acaiger]

I'm trying to do the same thing on another domain and it's not working. After following the instructions above (I also disabled e-mail for that domain in the control panel), I get the following error in /var/log/maillog:

Code:

Feb  3 10:43:36 myserver postfix/smtp[11521]: B28CD15D981: to=<some.one@example.com>, relay=none, delay=0.21, delays=0.21/0/0/0, dsn=5.4.6, status=bounced (mail for example.com loops back to myself)

Any idea what might be the reason for this?

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I solved the problem myself!
It was because this domain also had a domain alias.

Changing postfix settings didn't seem to work. I needed to change the IP address of the mail host in the DNS, and do it for both the domain and its alias.