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ns.checkeremail.com

ns.checkeremail.com is a mail server (MX) used by 1 checked domain. Based on public DNS, it looks healthy.

IP & reverse DNS

IP addressReverse DNS (PTR)FCrDNSDNSBL
52.101.68.12mail-db9pr02cu00204.inbound.protection.outlook.comYesNot listed
52.101.91.156mail-maspr04cu00104.inbound.protection.outlook.comYesNot listed
52.101.103.162mail-miypr03cu00202.inbound.protection.outlook.comYesNot listed
52.101.209.31mail-cpjpr05cu00207.inbound.protection.outlook.comYesNot listed
2a01:111:f403:ca48::10mail-miypr05cu00100.inbound.protection.outlook.comYesNot listed
2a01:111:f403:ca48::amail-miypr02cu00202.inbound.protection.outlook.comYesNot listed
2a01:111:f403:ca48::12mail-miypr05cu00202.inbound.protection.outlook.comYesNot listed
2a01:111:f403:ca09::22mail-am7pr02cu00302.inbound.protection.outlook.comYesNot listed

FCrDNS (forward-confirmed reverse DNS) passes when the IP’s PTR name resolves back to the same IP. It is a key signal that a mail server is legitimately configured; servers without it are widely treated as suspicious.

Domains using this mail server

What does this mean?

These are public DNS facts about the mail server ns.checkeremail.com — the host that other servers connect to when delivering email for the domains above. We do not actively probe it over SMTP; the checks here are reverse DNS, forward-confirmed rDNS and public blocklists.

To look up a specific domain’s mail setup use the MX Lookup, or verify an address with the email checker. Learn more in email servers explained.

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