checkeremail.com is a mail server (MX) used by 1 checked domain. Based on public DNS, it is partially configured.
| IP address | Reverse DNS (PTR) | FCrDNS | DNSBL |
|---|---|---|---|
| 18.239.50.33 | server-18-239-50-33.ams58.r.cloudfront.net | Yes | Not listed |
| 18.239.50.22 | server-18-239-50-22.ams58.r.cloudfront.net | Yes | Not listed |
| 18.239.50.78 | server-18-239-50-78.ams58.r.cloudfront.net | Yes | Not listed |
| 18.239.50.110 | server-18-239-50-110.ams58.r.cloudfront.net | Yes | Not listed |
| 2600:9000:2435:3000:19:d9c9:16c0:93a1 | No | Unknown | Not listed |
| 2600:9000:2435:1000:19:d9c9:16c0:93a1 | No | Unknown | Not listed |
| 2600:9000:2435:9400:19:d9c9:16c0:93a1 | No | Unknown | Not listed |
| 2600:9000:2435:ae00:19:d9c9:16c0:93a1 | No | Unknown | Not listed |
| 2600:9000:2435:b000:19:d9c9:16c0:93a1 | No | Unknown | Not listed |
| 2600:9000:2435:9e00:19:d9c9:16c0:93a1 | No | Unknown | Not listed |
| 2600:9000:2435:ec00:19:d9c9:16c0:93a1 | No | Unknown | Not listed |
| 2600:9000:2435:6a00:19:d9c9:16c0:93a1 | No | Unknown | Not 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.
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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