The domain has no MX hosts whose reverse DNS could be checked.

PTR_NO_MAIL_HOSTS · Severity: Info

• InfoPTR_NO_MAIL_HOSTS

  The domain has no MX hosts whose reverse DNS could be checked.

  There is no MX record with a host name, for example because the domain has no MX records or publishes a null MX. The reverse DNS check looks at the MX hosts, which often also send the domain's mail.

Reported by

• Domain health check
• Reverse DNS check for mail servers

Available through the API

• Domain health check API
• Reverse DNS check for mail servers API

Related findings

• Warning PTR_NOT_FORWARD_CONFIRMED The PTR name of a mail server address does not point back to it.
• Warning PTR_MISSING A mail server address has no PTR record.
• Info PTR_MULTIPLE_RECORDS A mail server address has more than one PTR record.

All findings