4 ms·
Why an explicit null MX record? Mainly because email servers may keep trying thinking it's a temporary issue rather than an explicit configuration the domain do
by rob-olmos 6y ago
Why an explicit null MX record? Mainly because email servers may keep trying thinking it's a temporary issue rather than an explicit configuration the domain does not receive email.
Some additional helpful info in this answer: https://serverfault.com/a/714070/53160 https://serverfault.com/a/714070/53160