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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 is partially configured.

IP & reverse DNS

IP addressReverse DNS (PTR)FCrDNSDNSBL
34.243.165.154ec2-34-243-165-154.eu-west-1.compute.amazonaws.comYesNot listed
3.248.117.51ec2-3-248-117-51.eu-west-1.compute.amazonaws.comYesNot listed
34.246.2.103NoUnknownNot 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.

Server software

Detected softwarePostfix (from SMTP banner)
SMTP banner220 mx-01-eu-west-1.prod.hydra.sophos.com ESMTP Postfix

Captured passively during an earlier check — we do not actively scan mail servers.

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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