Hello,
My mail server working fine.
when i test my mail server at : https://www.checktls.com/ ..
i see an error:
MTA-STS - no policy
policy-->error could not retrieve policy: 500 Can't connect to mta-sts.mail.mydomain.com:443 (Name or service not known)
any idea if I should use MTA-STS?
and how to fi this issue?
