`bdo4.mail.onmicrosoft.com`

DNSSEC	⚠️ Not signed
MX	`bdo4-mail-onmicrosoft-com.mail.protection.outlook.com` ⭐
		A	52.101.10.18^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00302.inbound.protection.outlook.com`
		A	52.101.11.13^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr0501cu00205.inbound.protection.outlook.com`
		A	52.101.41.183^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-byapr04cu00307.inbound.protection.outlook.com`
		A	52.101.194.19^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch5pr02cu00303.inbound.protection.outlook.com`
TXT	`v=spf1 include:outlook.com -all`

`mail.onmicrosoft.com`

	DNSSEC	⚠️ Not signed
	MX	`mail.mail.protection.outlook.com` ⭐
	TXT	`v=spf1 include:spf.protection.outlook.com -all`

WOT: SAFE (50/100)

Subdomains

autodiscover.bdo4.mail.onmicrosoft.com

Same first word

bdo4.shop

bdo4.cyou

Similar names

ob4d.com

db4o.eu

bo4d.site

bo4d.com

db4o.org

obd4.de

o4db.com

4dob.com

db4o.com

db4o.net

4bod.com

DNS History

5 records (1 active, 4 former)

○NSns1.bdm.microsoftonline.com2017-01-17 → 2017-01-17 · 3 obs

● 2017-01-17 23:40:28
○ 2026-04-03 16:55:10
○ 2026-04-13 01:29:28

○NSns2.bdm.microsoftonline.com2017-01-17 → 2017-01-17 · 3 obs

● 2017-01-17 23:40:28
○ 2026-04-03 16:55:10
○ 2026-04-13 01:29:28

○NSns3.bdm.microsoftonline.com2017-01-17 → 2017-01-17 · 3 obs

● 2017-01-17 23:40:28
○ 2026-04-03 16:55:10
○ 2026-04-13 01:29:28

○NSns4.bdm.microsoftonline.com2017-01-17 → 2017-01-17 · 3 obs

● 2017-01-17 23:40:28
○ 2026-04-03 16:55:10
○ 2026-04-13 01:29:28

●MXbdo4-mail-onmicrosoft-com.mail.protection.outlook.com2017-01-17 → 2026-04-13 · 2 obs

● 2017-01-17 23:40:28
● 2026-04-13 01:29:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
onmicrosoft.com	ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com	8 records

✅ Authoritative Response

Server:150.171.21.208

NS records: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for onmicrosoft.com (unsigned zone)

⏱️ Timing

Total: 98ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	1	`bdo4-mail-onmicrosoft-com.mail.protectio`
TXT	1	`v=spf1 include:outlook.com -all`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1.bdm.microsoftonline.com, ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com...)

Analysis

Hierarchy

bdo4.mail.onmicrosoft.com is the parent of autodiscover.bdo4.mail.onmicrosoft.com.

Mail Servers

bdo4.mail.onmicrosoft.com is handled by a single mail server, bdo4-mail-onmicrosoft-com.mail.protection.outlook.com.

The host name bdo4-mail-onmicrosoft-com.mail.protection.outlook.com resolves to four IP numbers: 52.101.10.18, 52.101.11.13, 52.101.41.183 and 52.101.194.19.

bdo4.mail.onmicrosoft.com - robtex.com