mail.21computer.de - dns.ninja

mail.21computer.de

DNSSEC⚠️ Not signed
A2a00:1169:103:99c0::🇫🇷 GODADDY-SXB2a00:1169:100::/40 SXB GCN VPS
PTRmc23133.ispgateway.de
A92.205.212.158🇫🇷 GODADDY-SXB92.205.208.0/21
MX21computer-de.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db3pr0202cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::4🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am0pr04cu00504.inbound.protection.outlook.com
A2a01:111:f403:ca09::6🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am4pr0401cu00106.inbound.protection.outlook.com
A2a01:111:f403:ca09::c🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as8pr05cu00304.inbound.protection.outlook.com
A52.101.68.10🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-dbbpr03cu00102.inbound.protection.outlook.com
A52.101.68.32🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db3pr0202cu00200.inbound.protection.outlook.com
A52.101.68.36🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db5pr02cu00104.inbound.protection.outlook.com
A52.101.73.19🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as8pr04cu00803.inbound.protection.outlook.com
TXTv=spf1 mx include:_spf.protonmail.ch include:spf.protection.outlook.com a inc...

21computer.de

DNSSEC⚠️ Not signed
A2a00:1169:103:99c0::🇫🇷 GODADDY-SXB2a00:1169:100::/40 SXB GCN VPS
A92.205.212.158🇫🇷 GODADDY-SXB92.205.208.0/21
NSns81.domaincontrol.com ⭐
NSns82.domaincontrol.com
MXmail.protonmail.ch ⭐
MXmailsec.protonmail.ch(15)
MX21computer-de.mail.protection.outlook.com(50)
TXT3i/Ou+92jJlPftgkvhrbtQB6pZZ+FsLfh+8nNU2P7w+YetceP2dGfzRKrMaz7fhMBCRWQMoHmHKRZ...
TXTv=spf1 mx include:_spf.protonmail.ch include:spf.protection.outlook.com a inc...
TXTMS=ms34670808
TXTprotonmail-verification=597903c8506e892d020e2018b6f7eeb63cabded6
SOAns81.domaincontrol.comdns@jomax.net 2025-11-24 #10
WOT: SAFE (61/100)

Previously MX for

21computer.de

Same first word

mail.go.th
mail.mil.cn
mail.poivron.org
mail.dnshome.de
mail.jp
mail.mp
mail.ac
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mail.photos
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DNS History

4 records (3 active, 1 former)

20192020202120222023202420252026MX21computer-de.mail.protection.outlook.comA2a00:1169:103:99c0::92.205.212.158185.106.151.221
●MX21computer-de.mail.protection.outlook.com2026-07-31 → 2026-07-31 · 1 obs
● 2026-07-31 04:11:52
○A185.106.151.2212018-06-18 → 2018-06-18 · 2 obs
● 2018-06-18 07:19:12
○ 2026-07-31 04:11:52
●A2a00:1169:103:99c0::2026-07-31 → 2026-07-31 · 2 obs
○ 2018-06-18 07:19:12
● 2026-07-31 04:11:52
●A92.205.212.1582026-07-31 → 2026-07-31 · 2 obs
○ 2018-06-18 07:19:12
● 2026-07-31 04:11:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
21computer.dens82.domaincontrol.com, ns81.domaincontrol.com-

✅ Authoritative Response

Server:173.201.69.32

NS records: ns82.domaincontrol.com, ns81.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21computer.de (unsigned zone)

⏱️ Timing

Total: 549ms | Queries: -

📄 Records

TypeCountSample Data
A192.205.212.158
AAAA12a00:1169:103:99c0::
MX121computer-de.mail.protection.outlook.co
TXT1v=spf1 mx include:_spf.protonmail.ch inc

Analysis

IP Addresses

mail.21computer.de resolves to the IP addresses 92.205.212.158 and 2a00:1169:103:99c0::

Two other host names, along with hostmaster.login-24.com, mc23133.ispgateway.de and multimedia-e.com, also share IP numbers with mail.21computer.de.

Mail Servers

The sole mail server for mail.21computer.de is 21computer-de.mail.protection.outlook.com.

mail.21computer.de shares at least some of its mail servers with other domains, such as 21computer.de.

These mail servers frequently appear alongside the mail servers mail.protonmail.ch and mailsec.protonmail.ch.

With 8 IP addresses total, 21computer-de.mail.protection.outlook.com resolves to 52.101.68.10, 52.101.68.32, 52.101.68.36 and 5 others.