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Queries the domain's MX records ordered by priority and checks whether the primary mail server appears on known public DNSBL blacklists.
Lists every configured MX server, in priority order, and applies the same blacklist check (Barracuda, SpamCop, UCEPROTECT) used by the email audit.
If a domain has no MX configured, it cannot receive mail directly even if its website works normally.
Frequently asked questions
Its IP was reported for behavior associated with spam on one of the queried public lists, which can affect your mail delivery.
All of them are listed, but the blacklist check applies to the highest-priority one.