Public DNS evidence · no login · no email sent

“NOERROR” but no relevant MX answers?

Check the exact hostname before changing records. Mail Routing Doctor reads public MX, A, AAAA, SPF, and DMARC data and explains what the resolver actually returned.

This is a routing snapshot, not a security audit. It cannot prove mailbox delivery, sender reputation, spam-folder placement, or future DNS state.

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Inspect one public hostname

Hostname only—no URL, IP address, email address, credentials, or internal name.

What the error means

Success can still contain no route

NOERROR + MX answer

The DNS query succeeded and published one or more mail exchangers. Each target still needs a public address.

NOERROR + empty MX

The hostname was queried successfully, but no relevant MX record was returned. This is different from a lookup failure.

NXDOMAIN

The resolver says the exact hostname does not exist. Check the spelling and authoritative zone before editing mail settings.

Send-only is not receive-ready

An SPF-authenticated sending subdomain can intentionally have no inbox route. Replies must use the exact receiving domain you configured.

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