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 address	Reverse DNS (PTR)	FCrDNS	DNSBL
52.101.157.11	mail-os0p286cu01203.inbound.protection.outlook.com	Yes	Not listed
52.101.124.5	mail-tyvp286cu00305.inbound.protection.outlook.com	Yes	Not listed
52.101.124.1	mail-ty3p286cu00101.inbound.protection.outlook.com	Yes	Not listed
52.101.157.40	mail-os9p286cu00100.inbound.protection.outlook.com	Yes	Not listed
2a01:111:f403:cc1a::	mail-tycp286cu02600.inbound.protection.outlook.com	Yes	Not listed
2a01:111:f403:cc1a::1	mail-ty3p286cu00101.inbound.protection.outlook.com	Yes	Not listed
2a01:111:f403:cc1a::2	mail-tyvp286cu00302.inbound.protection.outlook.com	Yes	Not listed
2a01:111:f403:cc1a::3	mail-tyvp286cu00203.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.

Server software

Detected software	Microsoft Exchange / 365 (from SMTP banner)
SMTP banner	`220 TYO1EPF0000501F.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Sun, 13 Sep 2026 14:15:03 +0000 [08DF108E1DDEF4E4]`

Captured passively during an earlier check — we do not actively scan mail servers.

Domains using this mail server

luckygyanu.com

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.