ns.checkeremail.com is a mail server (MX) used by 1 checked domain. Based on public DNS, it looks healthy.
| IP address | Reverse DNS (PTR) | FCrDNS | DNSBL |
|---|---|---|---|
| 56.124.2.4 | ec2-56-124-2-4.sa-east-1.compute.amazonaws.com | Yes | Not listed |
| 52.67.103.141 | ec2-52-67-103-141.sa-east-1.compute.amazonaws.com | Yes | Not listed |
| 15.229.225.178 | ec2-15-229-225-178.sa-east-1.compute.amazonaws.com | Yes | 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 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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