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 |
|---|---|---|---|
| 52.101.145.76 | mail-pn3pr01cu01304.inbound.protection.outlook.com | Yes | Not listed |
| 52.101.144.3 | mail-ma0pr01cu01103.inbound.protection.outlook.com | Yes | Not listed |
| 52.101.145.2 | mail-pnypr01cu00202.inbound.protection.outlook.com | Yes | Not listed |
| 52.101.144.0 | mail-ma0pr01cu01000.inbound.protection.outlook.com | Yes | Not listed |
| 2a01:111:f403:cc2d::4 | mail-pn3pr01cu01304.inbound.protection.outlook.com | Yes | Not listed |
| 2a01:111:f403:cc2c:: | mail-ma0pr01cu01000.inbound.protection.outlook.com | Yes | Not listed |
| 2a01:111:f403:cc2d:: | mail-pnzpr01cu00200.inbound.protection.outlook.com | Yes | Not listed |
| 2a01:111:f403:cc2c::1 | mail-ma0pr01cu01101.inbound.protection.outlook.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 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.
ご質問、データの削除のご希望、またはお使いのメールサーバーへのチェックの停止のご依頼はございませんか?お気軽にご連絡ください。すべてのメッセージにお返事いたします。