`mail.linuxforce.nl`

DNSSEC	⚠️ Not signed
A	81.169.168.221^{🇩🇪 STRATO81.169.128.0/17 AG}
		PTR	`mail.linuxforce.nl`

`linuxforce.nl`

	DNSSEC	⚠️ Not signed
	A	81.169.168.221^{🇩🇪 STRATO81.169.128.0/17 AG}
	NS	`ns.zxcs.nl` ⭐
	NS	`ns.zxcs.be`
	NS	`ns.zxcs.eu`
	MX	`mail.linuxforce.nl` ⭐
	TXT	`v=spf1 a mx ip4:81.169.168.221 ~all`
	SOA	`ns.zxcs.nl`hostmaster@linuxforce.nl 2021-07-11 #0

PTR for

221.168.169.81.in-addr.arpa

MX for

linuxforce.nl

intux.nl

Same first word

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DNS History

6 records (1 active, 5 former)

○A2001:470:1f14:570::12014-07-05 → 2014-07-05 · 3 obs

● 2014-07-05 22:47:10
○ 2016-01-13 20:34:22
○ 2026-07-08 11:47:22

○A2a01:238:436b:f300:535b:c36:8a89:f03b2016-11-02 → 2016-11-02 · 4 obs

○ 2016-03-08 12:48:44
● 2016-11-02 01:39:46
○ 2026-02-16 09:10:38
○ 2026-07-08 11:47:22

○A31.170.165.1522014-07-05 → 2014-07-05 · 3 obs

● 2014-07-05 22:47:10
○ 2016-01-13 20:34:22
○ 2026-07-08 11:47:22

●A81.169.168.2212026-02-16 → 2026-07-08 · 3 obs

○ 2016-11-02 01:39:46
● 2026-02-16 09:10:38
● 2026-07-08 11:47:22

○A81.169.244.782016-11-02 → 2016-11-02 · 4 obs

○ 2016-03-08 12:48:44
● 2016-11-02 01:39:46
○ 2026-02-16 09:10:38
○ 2026-07-08 11:47:22

○A85.214.124.912016-03-08 → 2016-03-08 · 4 obs

○ 2016-01-13 20:34:22
● 2016-03-08 12:48:44
○ 2016-11-02 01:39:46
○ 2026-07-08 11:47:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
linuxforce.nl	ns.zxcs.be, ns.zxcs.eu, ns.zxcs.nl	-

✅ Authoritative Response

Server:46.101.179.64

NS records: ns.zxcs.be, ns.zxcs.eu, ns.zxcs.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1704ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.169.168.221`

Analysis

Mail Server Role

mail.linuxforce.nl acts as a mail server for linuxforce.nl and intux.nl.

IP Addresses

mail.linuxforce.nl resolves to just one IP address, 81.169.168.221.

Two other host names, along with linuxforce.nl, intmail.linuxforce.nl and matrix.linuxforce.nl, also share IP numbers with mail.linuxforce.nl.

mail.linuxforce.nl - dns.ninja