`mail.knowledgeactivators.nl`

DNSSEC	⚠️ Not signed
A	2a02:a462:e57c:0:26ef:3118:d48f:bd0e^{🇳🇱 KPN2a02:a400::/25 B.V.}
		PTR	`2a02-a462-e57c-0-26ef-3118-d48f-bd0e.fixed6.kpn.net`
MX	`smtp.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::2097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtp.rzone.de`
		A	81.169.145.98^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtp.rzone.de`

`knowledgeactivators.nl`

	DNSSEC	🔒 Signed (DS record present)
	A	2a02:a462:e57c:1:436c:de8f:7bdb:99a1^{🇳🇱 KPN2a02:a400::/25 B.V.}
	A	86.82.30.14^{🇳🇱 KPN86.80.0.0/13 BV}
	NS	`shades18.rzone.de` ⭐
	NS	`docks11.rzone.de`
	MX	`mail.knowledgeactivators.nl` ⭐
	MX	`mail2.rollernet.us`⁽²⁰⁾
	MX	`mail.rollernet.us`⁽²⁰⁰⁾
	SOA	`shades18.rzone.de`hostmaster@strato-rz.de 2023-04-13 #40

MX for

knowledgeactivators.nl

Same first word

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DNS History

3 records (2 active, 1 former)

●MXsmtp.rzone.de2026-03-10 → 2026-04-14 · 2 obs

● 2026-03-10 08:43:08
● 2026-04-14 20:21:04

●A2a02:a462:e57c:0:26ef:3118:d48f:bd0e2026-03-10 → 2026-04-14 · 3 obs

○ 2016-08-08 00:01:02
● 2026-03-10 08:43:08
● 2026-04-14 20:21:04

○A84.106.137.252015-04-14 → 2016-08-08 · 4 obs

● 2015-04-14 22:53:40
● 2016-08-08 00:01:02
○ 2026-03-10 08:43:08
○ 2026-04-14 20:21:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns4.dns.nl, ns1.dns.nl, ns3.dns.nl	-
knowledgeactivators.nl	docks11.rzone.de, shades18.rzone.de	-

✅ Authoritative Response

Server:217.160.80.138

NS records: docks11.rzone.de, shades18.rzone.de

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 2842ms | Queries: -

📄 Records

Type	Count	Sample Data
AAAA	1	`2a02:a462:e57c:0:26ef:3118:d48f:bd0e`
MX	1	`smtp.rzone.de (pri: 5)`

Analysis

Mail Server Role

mail.knowledgeactivators.nl functions as a mail server for knowledgeactivators.nl.

mail2.rollernet.us and mail.rollernet.us are commonly used as mail servers alongside mail.knowledgeactivators.nl.

IP Addresses

mail.knowledgeactivators.nl resolves to one IP number: 2a02:a462:e57c:0:26ef:3118:d48f:bd0e.

Other host names, for instance 2a02-a462-e57c-0-26ef-3118-d48f-bd0e.fixed6.kpn.net, mail.zschuschen.nl and mail.heuriskoo.nl share IP numbers with mail.knowledgeactivators.nl.

Mail Servers

mail.knowledgeactivators.nl is handled by a single mail server, smtp.rzone.de.

mail.knowledgeactivators.nl shares the same mail server setup as other domains, for instance roybiesheuvel.nl, rowlands.nl, shg-klusbedrijf.nl, intelligentheizen.net and ostermann.nl.

smtp.rzone.de resolves to two IP numbers: 2a01:238:20a:202:50f0::2097 and 81.169.145.98.

mail.knowledgeactivators.nl - robtex.com