`mail.office.o7.com`

DNSSEC	⚠️ Not signed
A	188.254.6.154^{🇷🇺 ROSTELECOM-AS188.254.0.0/17 ROSTELECOM NETS}
		PTR	`mail.office.o7.com`

`office.o7.com`

	DNSSEC	⚠️ Not signed
	MX	`mail.office.o7.com` ⭐

PTR for

154.6.254.188.in-addr.arpa

MX for

office.o7.com

Same first word

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DNS History

1 record (1 active, 0 former)

●A188.254.6.1542016-11-15 → 2026-07-13 · 2 obs

● 2016-11-15 12:18:26
● 2026-07-13 15:43:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net...	-
o7.com	ns6.o7.com, ns5.o7.com	2 records

✅ Authoritative Response

Server:81.177.99.16

NS records: ns6.o7.com, ns5.o7.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for o7.com (unsigned zone)

⏱️ Timing

Total: 573ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`188.254.6.154`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns6.o7.com, ns5.o7.com)

Analysis

Mail Server Role

mail.office.o7.com is a mail server for office.o7.com.

IP Addresses

mail.office.o7.com directs to one IP number, which is 188.254.6.154.

mail.office.o7.com - robtex.com