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EMAIL-NO-MX

No MX record for the domain

What it means

Senders fall back to the domain's A record on port 25. That works only if the web host also runs a mail server, which most do not, and some senders treat missing MX as suspicious.

How to fix it

  1. 1Publish MX records pointing at your mail provider's hosts.
  2. 2If mail is hosted with the website, still add an MX for the host so delivery is explicit.

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.