CF1759723077676-tsm20251005211530

IPLIST.NET - mail.challengeip.com

Search for IP or hostnames:

mail.challengeip.com checked at 2025-10-06T03:57:57.654Z 742ms 119/119/119 100% R:16

mail.challengeip.com

CNAMEmail.office365.com
CNAMEoutlook.office365.com
CNAMEooc-g2.tm-4.office.com
CNAMEoutlook.ms-acdc.office.com
A2603:1036:302:40a0::2 🇺🇸 Microsoft
A2603:1036:302:40d0::2 🇺🇸 Microsoft
A2603:1036:302:40f4::2 🇺🇸 Microsoft
A2603:1036:302:4158::2 🇺🇸 Microsoft
A2603:1036:302:415b::2 🇺🇸 Microsoft
A2603:1036:302:415f::2 🇺🇸 Microsoft
A2603:1036:302:4834::2 🇺🇸 Microsoft
A2603:1036:302:48b4::2 🇺🇸 Microsoft
A52.96.38.82🇺🇸 Microsoft
A52.96.62.226🇺🇸 Microsoft
A52.96.179.226🇺🇸 Microsoft
A52.96.181.34🇺🇸 Microsoft
A52.96.181.98🇺🇸 Microsoft
A52.96.182.98🇺🇸 Microsoft
A52.96.182.114🇺🇸 Microsoft
A52.96.230.162🇺🇸 Microsoft

challengeip.com

MXmail.challengeip.com
NSaisha.ns.cloudflare.com
NSchuck.ns.cloudflare.com
MXchallengeip-com.mail.protection.outlook.com
A2606:4700:3033::6815:57e9 🇺🇸 Cloudflare
A2606:4700:3036::ac43:946a 🇺🇸 Cloudflare
A104.21.87.233 Cloudflare
A172.67.148.106🇺🇸 Cloudflare

MX for

Starts with same word

Starts similarily

AI analysis

mail.challengeip.com serves as the mail server for challengeip.com.

challengeip-com.mail.protection.outlook.com often functions as the mail server, commonly paired with mail.challengeip.com.

mail.challengeip.com points to sixteen IP numbers in a 3-step sequence from 2603:1036:302:40a0::2 to 52.96.230.162: 2603:1036:302:40a0::2, 2603:1036:302:40d0::2, 2603:1036:302:40f4::2, 2603:1036:302:4158::2, 2603:1036:302:415b::2, 2603:1036:302:415f::2, 2603:1036:302:4834::2, 2603:1036:302:48b4::2, 52.96.38.82, 52.96.62.226, 52.96.179.226, 52.96.181.34, 52.96.181.98, 52.96.182.98, 52.96.182.114 and 52.96.230.162.

Other host names such as outlook-ww-acdc-fs.trafficmanager.net, 6aed23b071fbe9e65e278c8b8d785c00.fp.measure.office.com, eb710b463630aa4d4bc59ab0b7e12c61.fp.measure.office.com, 95801f6102adba5fa00b3b6b595111a4.fp.measure.office.com and 5660e07c1a6999c4b51850594f722296.fp.measure.office.com share IP numbers with mail.challengeip.com.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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