Does the PTR record have to match the MX record or can it match the domain name?
Below is example.com zone file:
example.com. IN MX 10 mail
example.com. IN A 184.108.40.206
mail IN A 220.127.116.11
Will setting the PTR to example.com work or does it HAVE to point to mail.example.com?
18.104.22.168 IN PTR example.com
22.214.171.124 IN PTR mail.example.com
DOes it matter? will both work?