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EMAIL-NULL-MX

The domain declares that it receives no mail

What it means

A null MX record (a single MX of "." with preference 0, RFC 7505) is a deliberate statement that the domain accepts no email. Senders fail fast instead of retrying.

How to fix it

  1. 1If the domain should receive mail, replace the null MX with real MX records pointing at your mail hosts.
  2. 2If it should not, nothing to fix: addresses at this domain are intentionally undeliverable.

Re-check after the change

DNS changes can take up to the record's TTL to be seen; use Re-run on the result page to bypass our 10-minute cache.