`mail4.subharmonics.com`

	DNSSEC	⚠️ Not signed
	A	66.92.165.68^{🇺🇸 GTT-BACKBONE66.92.0.0/15 GTT}
	TXT	`v=spf1 a ip4:209.183.228.32/28 ~all`

`subharmonics.com`

	DNSSEC	⚠️ Not signed
	A	209.183.228.38^{🇺🇸 ATLANTECH209.183.192.0/18 Atlantech Online, Inc. Silver Spring, MD 20910 USA}
	NS	`ns1.subharmonics.com` ⭐
	NS	`ns2.subharmonics.com`
	MX	`mail1.subharmonics.com` ⭐
	MX	`mail2.subharmonics.com`⁽²⁰⁾
	TXT	`v=spf1 a mx ip4:162.191.6.105 ip4:209.183.228.32/28 -all`
	SOA	`ns1.subharmonics.com`root@subharmonics.com 2026-01-12 #1

MX for

thetakappa.org

Previously MX for

subharmonics.com

carthagoservices.com

ilevels.net

drylongso.com

Same first word

mail4.info

mail4.us

mail4.at

mail4.uk

mail4.kinghost.net

mail4.org

mail4.dk

mail4.pl

mail4.nhs.uk

mail4.io

mail4.de

mail4.mil.ru

mail4.ru

mail4.online

mail4.in

mail4.co

mail4.com

mail4.it

mail4.gov.ao

mail4.net

mail4.pro

Similar names

4mail.ca

4mail.it

4mila.ch

ml4ai.net

4mail.co

4mail.de

4mail.org

4mail.us

4mail.eu

lima4.com

4mali.com

4lima.com

4mail.nl

4mail.ru

4lima.ch

4mail.xyz

4mail.be

4lima.at

4mail.od.ua

ai4ml.com

4mail.nz

4mail.es

4mail.pt

4mail.work

4mail.com

4mail.co.uk

4lima.de

4mail.se

mila4.de

4mail.top

4mail.me

4mail.net

4mail.hu

4mail.fr

4mail.pl

4mail.pro

4mail.cn

DNS History

2 records (1 active, 1 former)

●A66.92.165.682026-03-27 → 2026-06-06 · 3 obs

○ 2016-09-25 21:40:10
● 2026-03-27 10:59:36
● 2026-06-06 12:02:50

○A66.92.165.692014-07-13 → 2016-09-25 · 4 obs

● 2014-07-13 18:48:54
● 2016-09-25 21:40:10
○ 2026-03-27 10:59:36
○ 2026-06-06 12:02:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
subharmonics.com	ns1.subharmonics.com, ns2.subharmonics.com	2 records

✅ Authoritative Response

Server:209.183.228.38

NS records: ns1.subharmonics.com, ns2.subharmonics.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for subharmonics.com (unsigned zone)

⏱️ Timing

Total: 3296ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`66.92.165.68`
TXT	1	`v=spf1 a ip4:209.183.228.32/28 ~all`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.subharmonics.com, ns2.subharmonics.com)

Analysis

Mail Server Role

mail4.subharmonics.com is used as a mail server for thetakappa.org.

As mail servers, mail1.subharmonics.com and mail4.subharmonics.com are regularly found together.

IP Addresses

mail4.subharmonics.com has exactly one IP address — 66.92.165.68.

dsl092-165-068.wdc2.dsl.speakeasy.net, for instance, is one of the other host names sharing IP numbers with mail4.subharmonics.com.

mail4.subharmonics.com - robtex.com