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
52.101.41.206	mail-byapr05cu00806.inbound.protection.outlook.com	Yes	Not listed
52.101.194.4	mail-ch4pr04cu00104.inbound.protection.outlook.com	Yes	Not listed
52.101.41.0	mail-byapr05cu00400.inbound.protection.outlook.com	Yes	Not listed
52.101.41.198	mail-byapr05cu00706.inbound.protection.outlook.com	Yes	Not listed
2a01:111:f403:f907::1	mail-dm1pr04cu00201.inbound.protection.outlook.com	Yes	Not listed
2a01:111:f403:c927::7	mail-bn0pr04cu00907.inbound.protection.outlook.com	Yes	Not listed
2a01:111:f403:f801::	mail-byapr05cu00700.inbound.protection.outlook.com	Yes	Not listed
2a01:111:f403:f90b::	mail-bn6pr04cu00100.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 BL02EPF00029929.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Tue, 14 Jul 2026 09:31:09 +0000 [08DEE0143A49FB36]`

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

Domains using this mail server

phocassoftware.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.