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checkeremail.com

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
34.199.159.209ec2-34-199-159-209.compute-1.amazonaws.comYesNot listed
147.160.167.15psm.knowbe4.comYesNot listed
23.21.109.197psm.knowbe4.comYesNot listed
52.49.235.189psm.knowbe4.comYesNot listed
34.251.106.174ec2-34-251-106-174.eu-west-1.compute.amazonaws.comYesNot listed
147.160.167.14psm.knowbe4.comYesNot listed
34.197.134.60ec2-34-197-134-60.compute-1.amazonaws.comYesNot listed
23.21.109.212psm.knowbe4.comYesNot listed
52.49.201.246psm.knowbe4.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 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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