mail.knook.org - robtex.com

mail.knook.org

DNSSEC⚠️ Not signed
A81.169.206.193🇩🇪 STRATO81.169.128.0/17 AG
PTRdns1.4u-hosting.com

knook.org

DNSSEC⚠️ Not signed
A81.169.206.193🇩🇪 STRATO81.169.128.0/17 AG
NSdns2.4u-hosting.com ⭐
NSdns1.4u-hosting.com
MXmail.knook.org ⭐
TXTv=spf1 +a +mx +a:u-online.nl
SOAdns2.4u-hosting.comckn19341@gmail.com serial=1773652125

MX for

knook.org

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A81.169.206.19385.214.156.246
●A81.169.206.1932026-02-15 → 2026-04-13 · 3 obs
○ 2016-04-17 18:05:26
● 2026-02-15 21:46:34
● 2026-04-13 20:37:14
○A85.214.156.2462015-06-02 → 2016-04-17 · 4 obs
● 2015-06-02 09:39:26
● 2016-04-17 18:05:26
○ 2026-02-15 21:46:34
○ 2026-04-13 20:37:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org-
knook.orgdns1.4u-hosting.com, dns2.4u-hosting.com-

✅ Authoritative Response

Server:81.169.206.193

NS records: dns1.4u-hosting.com, dns2.4u-hosting.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knook.org (unsigned zone)

⏱️ Timing

Total: 885ms | Queries: -

📄 Records

TypeCountSample Data
A181.169.206.193

Analysis

Mail Server Role

mail.knook.org serves as a mail server for knook.org.

IP Addresses

mail.knook.org resolves to one IP number: 81.169.206.193.

Other host names, for instance enzyme-energy.nl, u-online.com, knook.org, casknook.com and kes.nl share IP numbers with mail.knook.org.