`mail.3stechgroup.com`

DNSSEC	⚠️ Not signed
A	50.186.216.162^{🇺🇸 COMCAST-IBONE50.128.0.0/9 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mount Laurel, NJ 08054}
		PTR	`smtp.3stg.com`

`3stechgroup.com`

	DNSSEC	⚠️ Not signed
	A	50.186.216.162^{🇺🇸 COMCAST-IBONE50.128.0.0/9 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mount Laurel, NJ 08054}
	NS	`ns53.worldnic.com` ⭐
	NS	`ns54.worldnic.com`
	MX	`smtp.3stechgroup.com` ⭐
	MX	`mail.3stechgroup.com`⁽²⁰⁾
	SOA	`NS53.WORLDNIC.com`namehost@WORLDNIC.com serial=126022307

MX for

3stechgroup.com

Same first word

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DNS History

3 records (1 active, 2 former)

○A208.78.147.232015-08-17 → 2016-07-21 · 4 obs

● 2015-08-17 11:59:16
● 2016-07-21 01:09:30
○ 2026-03-01 14:16:48
○ 2026-03-28 19:44:50

○A50.186.216.1612026-03-01 → 2026-03-28 · 2 obs

○ 2026-03-01 14:16:48
○ 2026-03-28 19:44:50

●A50.186.216.1622026-03-01 → 2026-03-28 · 3 obs

○ 2016-07-21 01:09:30
● 2026-03-01 14:16:48
● 2026-03-28 19:44:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, d.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net...	-
3stechgroup.com	ns53.worldnic.com, ns54.worldnic.com	2 records

✅ Authoritative Response

Server:162.159.26.165

NS records: ns53.worldnic.com, ns54.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 3stechgroup.com (unsigned zone)

⏱️ Timing

Total: 263ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`50.186.216.162`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns53.worldnic.com, ns54.worldnic.com)

Analysis

Mail Server Role

The mail server for 3stechgroup.com is mail.3stechgroup.com.

For mail handling, smtp.3stechgroup.com serves as a mail server together with mail.3stechgroup.com.

IP Addresses

mail.3stechgroup.com points to a single IP number: 50.186.216.162.

Other host names such as smtp.3stechgroup.com and 3stechgroup.com share IP numbers with mail.3stechgroup.com.

mail.3stechgroup.com - robtex.com