If I try to add an "A" record to my domain pointing to an ip address such as this:
mail.mydomain.com points to 101.101.101.101
I get this as a record?
mail.mydomain.com.mydomain.com points to 101.101.101.101
Why is this?
Thanks!
For A entries, in most cases, with most providers, you only need to specify mail and not the FQDN, or fully qualified domain name.
So instead of:
A mail.yourdomain.com IP_ADDRESS
... you'd want to use:
A mail IP_ADDRESS
This is the case with DigitalOcean's DNS, as well as most domain registrars. Your domain is appended by default, so there's no need to add it with the entry.