I currently only have ‘domain.tld’, now I want also to use ‘sub.domain.tld’ so that ‘firstname.lastname@example.org’ can be used.
What is the best way to proceed and what DNS settings have to be made there?
Thanks in advance.
I answered it myself 🙂
But now I have 2 MX entries in the DNS for the domain and for subdomain both with priority 10.
Can I leave both at 10 or do I have to set one of them lower?