MXLIST.NET - firstrf.mail.protection.office365.us
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firstrf.mail.protection.office365.us checked at 2025-11-27T11:00:09.606Z 138ms 30/30/30 100% R:9 allDone:true timedOut:false firstrf.mail.protection.office365.us
| A | 23.103.199.138🇺🇸 Microsoft | ||||||
| PTR | mail-bn3usg020138.inbound.protection.outlook.com | ||||||
| A | 23.103.199.170🇺🇸 Microsoft | ||||||
| PTR | mail-cy1usg020170.inbound.protection.outlook.com | ||||||
mail.protection.office365.us
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Starts with same word
Starts similarily
AI analysis
firstrf.mail.protection.office365.us serves as the mail server for firstrf.com.
firstrf.mail.protection.office365.us resolves to two IP numbers: 23.103.199.138 and 23.103.199.170.
Other host names, for instance schneiderelectriccritical-com04c.mail.protection.office365.us, netdocumentsusa.mail.protection.office365.us, barbernichols.mail.protection.office365.us, fdsavionics-com.mail.protection.office365.us and peccloud.mail.protection.office365.us share IP numbers with firstrf.mail.protection.office365.us.