`cpp-es.mail.protection.outlook.com`

DNSSEC	⚠️ Not signed
A	2a01:111:f403:ca0b::1^{🇬🇧 Microsoft2a01:111:f000::/36}
		PTR	`mail-lo3p265cu00301.inbound.protection.outlook.com`
A	2a01:111:f403:ca0b::2^{🇬🇧 Microsoft2a01:111:f000::/36}
A	2a01:111:f403:ca1a::^{🇬🇧 Microsoft2a01:111:f000::/36}
A	2a01:111:f403:ca1a::1^{🇬🇧 Microsoft2a01:111:f000::/36}
A	52.101.89.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
A	52.101.89.1^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
A	52.101.89.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
A	52.101.99.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}

`mail.protection.outlook.com`

	DNSSEC	⚠️ Not signed
	NS	`ns1-proddns.glbdns.o365filtering.com` ⭐ ⚠️ Not in parent delegation
	NS	`ns1-proddns.glbdns.protection.outlook.com` ⚠️ Not in zone NS records
	NS	`ns2-proddns.glbdns.o365filtering.com` ⚠️ Not in parent delegation
	NS	`ns2-proddns.glbdns.protection.outlook.com` ⚠️ Not in zone NS records
	SOA	`ns1-proddns.glbdns.o365filtering.com`hostmaster@o365filtering.com 2013-01-08 #1

WOT: SAFE (60/100)
WOT: SAFE (63/100)

Previously MX for

cpp.es

Similar names

pec-ps.com

eps-pc.com

pc-eps.com

DNS History

10 records (8 active, 2 former)

○A2a01:111:f403:ca0b::2026-04-24 → 2026-04-24 · 2 obs

● 2026-04-24 09:54:32
○ 2026-04-24 15:20:16

●A2a01:111:f403:ca0b::12026-04-24 → 2026-04-24 · 2 obs

● 2026-04-24 09:54:32
● 2026-04-24 15:20:16

●A2a01:111:f403:ca0b::22026-04-24 → 2026-04-24 · 2 obs

● 2026-04-24 09:54:32
● 2026-04-24 15:20:16

●A2a01:111:f403:ca1a::2026-04-24 → 2026-04-24 · 2 obs

● 2026-04-24 09:54:32
● 2026-04-24 15:20:16

●A2a01:111:f403:ca1a::12026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-24 09:54:32
● 2026-04-24 15:20:16

●A52.101.89.02026-04-24 → 2026-04-24 · 2 obs

● 2026-04-24 09:54:32
● 2026-04-24 15:20:16

●A52.101.89.12026-04-24 → 2026-04-24 · 2 obs

● 2026-04-24 09:54:32
● 2026-04-24 15:20:16

●A52.101.89.22026-04-24 → 2026-04-24 · 2 obs

● 2026-04-24 09:54:32
● 2026-04-24 15:20:16

○A52.101.99.02026-04-24 → 2026-04-24 · 2 obs

● 2026-04-24 09:54:32
○ 2026-04-24 15:20:16

●A52.101.99.22026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-24 09:54:32
● 2026-04-24 15:20:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
mail.protection.outlook.com	ns1-proddns.glbdns.protection.outlook.com, ns2-proddns.glbdns.protection.outlook.com	-

✅ Authoritative Response

Server:52.102.28.86

NS records: ns1-proddns.glbdns.protection.outlook.com, ns2-proddns.glbdns.protection.outlook.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mail.protection.outlook.com (unsigned zone)

⏱️ Timing

Total: 151ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`52.101.89.2, 52.101.89.1...`
AAAA	4	`2a01:111:f403:ca1a::1, 2a01:111:f403:ca1a::...`

Analysis

IP Addresses

cpp-es.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:ca0b::1, 2a01:111:f403:ca0b::2, 2a01:111:f403:ca1a::, 2a01:111:f403:ca1a::1, 52.101.89.0, 52.101.89.1, 52.101.89.2 and 52.101.99.2.

Other host names such as bcse-org-uk.mail.protection.outlook.com, hieverest-com.mail.protection.outlook.com, infinitytechnologysystems-com.mail.protection.outlook.com, resellers-shop.mail.protection.outlook.com and cloudstreamglobal-com.mail.protection.outlook.com share IPs with cpp-es.mail.protection.outlook.com.

cpp-es.mail.protection.outlook.com - robtex.com