So i have mailcow configured to work under the domain mail.example.com. I added social.example.net under the ADDITIONAL_SAN key in mailcow.conf.
The problem now is, that mailcow only uses the certificate for example.com and *.example.com and not social.example.net. This leads to my email client rejecting the certificate, if trying to use an email address on social.example.net e.g. noreply@social.example.net.
Is there any way to change this?