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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
17.57.155.25mx01.mail.icloud.comYesNot listed
17.56.9.31mx01.mail.icloud.comYesNot listed
17.57.154.33mx01.mail.icloud.comYesNot listed
17.57.152.5mx02.mail.icloud.comYesNot listed
17.57.156.30mx01.mail.icloud.comYesNot listed
17.42.251.62mx02.mail.icloud.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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