Comment by dpifke
1 month ago
In this case, "null MX record" means MX exists, but does not specify a valid server:
$ host -t mx example.com
example.com mail is handled by 0 .
Senders should not fall back on the A record in this case.
1 month ago
In this case, "null MX record" means MX exists, but does not specify a valid server:
$ host -t mx example.com
example.com mail is handled by 0 .
Senders should not fall back on the A record in this case.
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