DNSWHOIS.INFO - firstus-com01c.mail.protection.outlook.com
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firstus-com01c.mail.protection.outlook.com checked at 2025-11-30T04:22:58.291Z 219ms 60/60/60 100% R:16 allDone:true timedOut:false firstus-com01c.mail.protection.outlook.com
| A | 2a01:111:f403:c902::3 🇺🇸 Microsoft | ||||||
| PTR | mail-sj0pr03cu01703.inbound.protection.outlook.com | ||||||
| A | 2a01:111:f403:c927:: 🇺🇸 Microsoft | ||||||
| PTR | mail-bn6pr21cu00500.inbound.protection.outlook.com | ||||||
| A | 2a01:111:f403:c946::6 🇺🇸 Microsoft | ||||||
| PTR | mail-ch5pr02cu00406.inbound.protection.outlook.com | ||||||
| A | 2a01:111:f403:f802::2 🇺🇸 Microsoft | ||||||
| PTR | mail-sj2pr05cu00202.inbound.protection.outlook.com | ||||||
| A | 52.101.8.42🇺🇸 Microsoft | ||||||
| PTR | mail-dm6pr03cu00402.inbound.protection.outlook.com | ||||||
| A | 52.101.9.11🇺🇸 Microsoft | ||||||
| PTR | mail-bl2pr04cu00103.inbound.protection.outlook.com | ||||||
| A | 52.101.194.13🇺🇸 Microsoft | ||||||
| PTR | mail-ch0pr04cu00605.inbound.protection.outlook.com | ||||||
| A | 52.101.194.15🇺🇸 Microsoft | ||||||
| PTR | mail-ch4pr21cu00107.inbound.protection.outlook.com | ||||||
mail.protection.outlook.com
MX for
AI analysis
firstus-com01c.mail.protection.outlook.com acts as a mail server for first-us.com.
firstus-com01c.mail.protection.outlook.com maps to eight IPs: 2a01:111:f403:c902::3, 2a01:111:f403:c927::, 2a01:111:f403:c946::6, 2a01:111:f403:f802::2, 52.101.8.42, 52.101.9.11, 52.101.194.13 and 52.101.194.15.
Other host names, for instance peakfireprotection-com.mail.protection.outlook.com, delphits-com01e.mail.protection.outlook.com, drjas-com0e.mail.protection.outlook.com, wonderstoneconsulting-com.mail.protection.outlook.com and calvaryluth-org.mail.protection.outlook.com share IP numbers with firstus-com01c.mail.protection.outlook.com.