`mail.opensourcerules.com`

DNSSEC	⚠️ Not signed
A	144.91.105.12^{🇩🇪 CONTABO144.91.104.0/23}
		PTR	`smtp.jentekco.com`

`opensourcerules.com`

	DNSSEC	⚠️ Not signed
	A	144.91.105.12^{🇩🇪 CONTABO144.91.104.0/23}
	NS	`ns1.ns-sv.net` ⭐
	NS	`ns2.ns-sv.net`
	MX	`mail.opensourcerules.com` ⭐
	SOA	`ns1.ns-sv.net`hostmaster@opensourcerules.com 2021-05-20 #13

MX for

opensourcerules.com

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DNS History

2 records (1 active, 1 former)

●A144.91.105.122026-03-01 → 2026-04-27 · 3 obs

○ 2016-06-28 01:03:54
● 2026-03-01 12:07:50
● 2026-04-27 19:07:12

○A84.39.97.972015-07-20 → 2016-06-28 · 4 obs

● 2015-07-20 09:42:38
● 2016-06-28 01:03:54
○ 2026-03-01 12:07:50
○ 2026-04-27 19:07:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, a.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net...	-
opensourcerules.com	ns1.ns-sv.net, ns2.ns-sv.net	-

✅ Authoritative Response

Server:89.107.70.141

NS records: ns1.ns-sv.net, ns2.ns-sv.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opensourcerules.com (unsigned zone)

⏱️ Timing

Total: 478ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`144.91.105.12`

Analysis

Mail Server Role

mail.opensourcerules.com is the mail server for opensourcerules.com.

IP Addresses

mail.opensourcerules.com points to a single IP number: 144.91.105.12.

Other host names, for instance dnic.eu, mail.underground-server.com and opensourcerules.com share IP numbers with mail.opensourcerules.com.

mail.opensourcerules.com - robtex.com