Postfix not accepting user@domain.com but is accepting user@mail.domain.com

[maberglund]

Hello all!

I have postfix/ispconfig 3/centos/etc. seemingly properly configured but I am running into a problem.

I have setup an email account in the system, user@mail.domain.com

I have properly set up my dns such that I have and A record for
mail.domain.com and
domain.com

with an mx record for
mail.domain.com

So, I expect that any mail that goes to user@domain.com would be forwarded to mail.domain.com (which are on the same machine), but instead postfix returns a 550 response and kicks the email back.

Do I have to set up another email domain in ispconfig and do an alias on each user, or is there a more global way to do this? I explored the $mydestination variable in postfixs main.cf, but from my reading, it appears that the right way to adjust these sort of things on ispconfig 3 with mysql is through the ispconfig interface itself

Any help would be appreciated!

[falko]

You have to create domain.com as a mail domain in ISPConfig and then create an alias.

[maberglund]

Thanks falko. So, after much fiddling, the only way I got this to work was to create two domains. One domain.com and the other mail.domain.com.

Then I could make one (domain.com) and alias of the other (mail.domain.com).

Is this correct? Is seems very counterintuitive.

[falko]

Yes, this is correct (if you want to alias all email accounts of domain.com to mail.domain.com).