I have one domain with my website + email on Hestia. I want to add another domain. My first domain is setup with standard dns:
A record for mail to IP
mx record for mail.domain1.com
For my second domain, I put at my registrar, 1&1, “MX” record and then I made an A record to point to mail.
A record to mail and my Hestia server IP
mx mail.domain1.com priority 10
Someone said this is not a good setup? Should I make a second mx record, do I need a slave to host it at another location? Please advise.