Weird TLS issue

I think there is no functional solution in Directadmin yet to have this kind of constillation.

For hostnamefunctions as DA port (2222) mailserver , ssh, ftp, they are not connected to the domain parts itself of the wildcard ssl part.

It is seperated, as also advice not having domain itself as hostname. ( you have that done right)

I also like to know.

For as i did always old DA manual command line , letsencrypt for hostname and there then also for the domain name itself.
Also dkim for the mailhost name server..
So is no wildcard and if using dkim caa later for the domain itself is .... ;(

Also hard to find all manuals and howto in one place to do this the right way.