`mail.a3thinking.nl`

DNSSEC	⚠️ Not signed
A	2a06:2ec0:1::159^{🇳🇱 AS-ZXCS2a06:2ec0::/32}
		PTR	`web0159.zxcs.nl`
A	185.104.29.154^{🇳🇱 AS-ZXCS185.104.29.0/24}

`a3thinking.nl`

	DNSSEC	⚠️ Not signed
	A	2a06:2ec0:1::159^{🇳🇱 AS-ZXCS2a06:2ec0::/32}
	A	185.104.29.154^{🇳🇱 AS-ZXCS185.104.29.0/24}
	NS	`ns.zxcs.nl` ⭐
	NS	`ns.zxcs.be`
	NS	`ns.zxcs.eu`
	MX	`mail.a3thinking.nl` ⭐
	TXT	`v=spf1 a mx ip4:185.104.29.154 ip6:2a06:2ec0:1:0:0:0:0:159 include:filter-out...`
	SOA	`ns.zxcs.nl`hostmaster@a3thinking.nl 2026-01-17 #4

MX for

a3thinking.nl

leanperformance.nl

Same first word

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DNS History

3 records (2 active, 1 former)

●A185.104.29.1542026-03-18 → 2026-03-27 · 3 obs

○ 2016-11-25 22:25:20
● 2026-03-18 03:17:34
● 2026-03-27 18:54:52

●A2a06:2ec0:1::1592026-03-18 → 2026-03-27 · 3 obs

○ 2016-11-25 22:25:20
● 2026-03-18 03:17:34
● 2026-03-27 18:54:52

○A37.247.35.1312015-07-17 → 2016-11-25 · 4 obs

● 2015-07-17 13:20:30
● 2016-11-25 22:25:20
○ 2026-03-18 03:17:34
○ 2026-03-27 18:54:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns4.dns.nl, ns1.dns.nl, ns3.dns.nl	-
a3thinking.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

⚠️ Insecure (no DNSSEC)

No DS record for a3thinking.nl (unsigned zone)

⏱️ Timing

Total: 1417ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.104.29.154`
AAAA	1	`2a06:2ec0:1::159`

Analysis

Mail Server Role

The mail server for a3thinking.nl and leanperformance.nl is mail.a3thinking.nl.

IP Addresses

mail.a3thinking.nl points to two IP numbers: 2a06:2ec0:1::159 and 185.104.29.154.

Other host names such as godert.nu, amegroup.nl, 3bict.nl, jannekedejong.nl and imiorg.nl share IP numbers with mail.a3thinking.nl.

mail.a3thinking.nl - robtex.com