Postmaster-email for hostname domain?

exetico

I’ve been running a mailserver for a good amount of time, but decided to give Mailcow a try - primary cause I moved all mail-related things, to a dedicated server, instead of a mix between webhosting, email and more.

I’ll use example.com as the domain, in the following question.

My new mailserver has the hostname mail.example.com set, so I would like to create a postmaster@mail.example.com, but it’s not allowed to use the hostname as a email-domain.

I totally get that, but how do I secure to have a “postmaster” and "noreply-dmarc` alias. Are the trick to create another mail-domain, and create a alias for postmaster@ and noreply-dmarc@, and point that, to another user?

I’ve tried to search a bit, but didn’t find the proper answer.

The docs > Installation ends with Remember to create an alias or a mailbox for postmaster., but I would like to know how that part are handled the best way.

TL;DR: New mailcow-instance created. I would like to create postmaster@{{HOSTNAME}}, but it’s not possible to create the hostname as a mail-domain. So, how’s that part handled the best, so I can get my postmaster-email created/aliased?

I hope someone are able to give me a guidance.

accolon

Usually you don’t have mail addresses for the mailserver’s hostname, are you really using this?

In my setup, the mailserver is mail.example.com and serves mail for user1@example.com or user2@example.net, but not for addresses like user1@mail.example.com.

So I would suggest you just create postmaster aliases/mailboxes for the domains you have configured and you are good to go.

exetico

Hi,

Thank you, for your input. That makes totally sense.

Actuall, I was a bit aware of it (using the primary domain, and not a sub-domain), however, while I migration one account after each other, my primary domain are still hooked up to my old server.

I’ll just wait until all users are moved from the old solution, and thereafter, use my primary domain.