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
139.219.146.10	mail-sh0chn020010.inbound.protection.outlook.com	Yes	Not listed
139.219.17.10	mail-bjschn020010.inbound.protection.outlook.com	Yes	Not listed
2406:e500:4440:2::10	mail-bjschn020010.inbound.protection.outlook.com	Yes	Not listed
2406:e500:4420:2::10	mail-sh0chn020010.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 SH0CHN02FT017.mail.protection.partner.outlook.cn Microsoft ESMTP MAIL Service ready at Mon, 14 Sep 2026 04:07:29 +0000 [08DF10C10FA34693]`

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

Domains using this mail server

gaitintl.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.