MXLIST.NET - a3us-com.mail.protection.office365.us
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a3us-com.mail.protection.office365.us checked at 2025-10-23T04:13:04.369Z 82ms 40/40/40 100% R:9a3us-com.mail.protection.office365.us
| A | 2001:489a:2202:4::10 🇺🇸 AS8070 | ||||||
| PTR | mail-bn3usg020010.inbound.protection.outlook.com | ||||||
| A | 2001:489a:2202:5::10 🇺🇸 AS8070 | ||||||
| PTR | mail-cy1usg020010.inbound.protection.outlook.com | ||||||
| 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
| NS | ns1-proddns.glbdns.protection.office365.us | ||||||
| NS | ns2-proddns.glbdns.protection.office365.us | ||||||
MX for
AI analysis
a3us-com.mail.protection.office365.us handles mail for a3us.com.
a3us-com.mail.protection.office365.us maps to four IP numbers: 2001:489a:2202:4::10, 2001:489a:2202:5::10, 23.103.199.138 and 23.103.199.170.
Other host names such as thermoanalyticsglobal.mail.protection.office365.us, antaresnuclear2027.mail.protection.office365.us, fmssecuresolutionscom.mail.protection.office365.us, nteligensolutions.mail.protection.office365.us and tecomsys.mail.protection.office365.us share IPs with a3us-com.mail.protection.office365.us.
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