[question] Adding domain name same as mailcow domain

[ghost]

I have installed mailcow using the domain mail.test.domain.tld.

now I want to add that same domain on the add domain page in the mailcow UI and im getting an error.
Is this not possible?

I have configured A record domain mail.test.domain.tld to point to my server ip and MX record domain mail.test.domain.tld pointing to the same server ip.

Im very new to this. hope someone can help. would really appreciate it.

[mkuron]

You can remove the check from the code and it will work. Details are in some ticket I couldn't find. The check mainly exists to discourage people from confusing their host name and domain -- barely anyone uses the domain as the mail server's host name. But there is no technical reason not to.

[andryyy]

There was a time we had the hostname in mydestination, I think. Not sure, but there could be something else I am missing now.

[ghost]

thanks for getting back to me @mkuron however, I couldn't find the code. could you tell me in which file the code is? that would be very helpful. i couldn't find the ticket with the details either.. please help. thanks!

[ghost]

never mind. found the code and removed it. its working now. much thanks!

[Coronon]

never mind. found the code and removed it. its working now. much thanks!

This is not very useful to people that find this while they have the exact same problem... Does anyone know where to find these mysterious lines?

Edit: It seems the following if is responsible in functions.mailbox.inc.php:

if ($domain == getenv('MAILCOW_HOSTNAME')) {
  $_SESSION['return'][] = array(
    'type' => 'danger',
    'log' => array(__FUNCTION__, $_action, $_type, $_data_log, $_attr),
    'msg' => 'domain_cannot_match_hostname'
  );
  return false;
}

Maybe this should become a warning, not an error one needs to "fix" by changing the code?

[ciroiriarte]

Hello, can this be moved to an optional check?. I don't want to monkey patch my installation.
In my case, I use a mail-specific domain (mydomain.email), so it doesn't handle anything else appart from email service.