mail.tkoessler.de - robtex.com

mail.tkoessler.de

DNSSEC⚠️ Not signed
A2a03:4000:5e:184:e496:fcff:fe3b:f217🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH
PTRmail.tkoessler.de
A89.58.7.51🇩🇪 netcup-AS89.58.4.0/22

tkoessler.de

DNSSEC🔒 Signed (DS record present)
A2a03:4000:5e:184:e496:fcff:fe3b:f217🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH
A89.58.7.51🇩🇪 netcup-AS89.58.4.0/22
NSroot-dns.netcup.net ⭐
NSsecond-dns.netcup.net
NSthird-dns.netcup.net
MXmail.tkoessler.de ⭐
TXTgoogle-site-verification=-WP2vMlGKvnAWQWYvdrHmtKHGflY4mU-Zha0LNklXxs
TXTv=spf1 a mx -all
SOAroot-dns.netcup.netdnsadmin@netcup.net 2026-07-31 #46

PTR for

7.1.2.f.b.3.e.f.f.f.c.f.6.9.4.e.4.8.1.0.e.5.0.0.0.0.0.4.3.0.a.2.ip6.arpa
51.7.58.89.in-addr.arpa

MX for

timokoessler.de
tkoessler.de
2faguard.app

Same first word

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DNS History

2 records (2 active, 0 former)

A2a03:4000:5e:184:e496:fcff:fe3b:f21789.58.7.51
●A2a03:4000:5e:184:e496:fcff:fe3b:f2172026-07-31 → 2026-08-01 · 2 obs
● 2026-07-31 17:26:28
● 2026-08-01 04:46:06
●A89.58.7.512026-07-31 → 2026-08-01 · 2 obs
● 2026-07-31 17:26:28
● 2026-08-01 04:46:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
tkoessler.dethird-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net-

✅ Authoritative Response

Server:37.221.199.199

NS records: third-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1080ms | Queries: -

📄 Records

TypeCountSample Data
A189.58.7.51
AAAA12a03:4000:5e:184:e496:fcff:fe3b:f217

Analysis

Mail Server Role

mail.tkoessler.de acts as a mail server for timokoessler.de, tkoessler.de and 2faguard.app.

IP Addresses

mail.tkoessler.de resolves to the IP addresses 89.58.7.51 and 2a03:4000:5e:184:e496:fcff:fe3b:f217

2faguard.app, timokoessler.de and tkoessler.de are examples of other host names that share IP numbers with mail.tkoessler.de.