mail.sdohn.de - robtex.com

mail.sdohn.de

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:a7ed🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:d73🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.13.115Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.167.237🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.13.115, 172.67.167.237
IPv6 hints2606:4700:3031::ac43:a7ed, 2606:4700:3037::6815:d73
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=133, name=cloudflare-ech.com

sdohn.de

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:a7ed🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:d73🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.13.115Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.167.237🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSamos.ns.cloudflare.com ⭐
NSarushi.ns.cloudflare.com
MX_dc-mx.caeb4b28c0a2.sdohn.de ⭐
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.13.115, 172.67.167.237
IPv6 hints2606:4700:3031::ac43:a7ed, 2606:4700:3037::6815:d73
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=133, name=cloudflare-ech.com
SOAamos.ns.cloudflare.comdns@cloudflare.com serial=2410244955

Previously MX for

sdohn.de

Same first word

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mail.mn
mail.mydns.bz
mail.fem.jp
mail.health
mail.s3.amazonaws.com
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DNS History

8 records (4 active, 4 former)

20162017201820192020202120222023202420252026A104.21.13.115172.67.167.2372606:4700:3031::ac43:a7ed2606:4700:3037::6815:d73194.164.52.592606:4700:3035::6815:d732606:4700:3037::ac43:a7ed46.32.253.81
●A104.21.13.1152026-06-16 → 2026-07-25 · 3 obs
○ 2026-04-09 21:21:32
● 2026-06-16 03:14:52
● 2026-07-25 08:07:10
●A172.67.167.2372026-06-16 → 2026-07-25 · 3 obs
○ 2026-04-09 21:21:32
● 2026-06-16 03:14:52
● 2026-07-25 08:07:10
○A194.164.52.592026-03-07 → 2026-04-09 · 5 obs
○ 2016-05-06 22:11:54
● 2026-03-07 13:24:36
● 2026-04-09 21:21:32
○ 2026-06-16 03:14:52
○ 2026-07-25 08:07:10
●A2606:4700:3031::ac43:a7ed2026-07-25 → 2026-07-25 · 2 obs
○ 2026-06-17 01:17:50
● 2026-07-25 08:07:10
○A2606:4700:3035::6815:d732026-06-16 → 2026-06-17 · 4 obs
○ 2026-04-09 21:21:32
● 2026-06-16 03:14:52
● 2026-06-17 01:17:50
○ 2026-07-25 08:07:10
●A2606:4700:3037::6815:d732026-07-25 → 2026-07-25 · 2 obs
○ 2026-06-17 01:17:50
● 2026-07-25 08:07:10
○A2606:4700:3037::ac43:a7ed2026-06-16 → 2026-06-17 · 4 obs
○ 2026-04-09 21:21:32
● 2026-06-16 03:14:52
● 2026-06-17 01:17:50
○ 2026-07-25 08:07:10
○A46.32.253.812015-07-13 → 2016-05-06 · 4 obs
● 2015-07-13 23:00:40
● 2016-05-06 22:11:54
○ 2026-03-07 13:24:36
○ 2026-07-25 08:07:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
sdohn.deamos.ns.cloudflare.com, arushi.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.61

NS records: amos.ns.cloudflare.com, arushi.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sdohn.de (unsigned zone)

⏱️ Timing

Total: 546ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.13.115, 172.67.167.237
AAAA22606:4700:3031::ac43:a7ed, 2606:4700:3037::6815:d73
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.sdohn.de has four IP addresses: 104.21.13.115, 172.67.167.237, 2606:4700:3031::ac43:a7ed and 2606:4700:3037::6815:d73.

Two other host names, along with sysadmin.pt, www.mcu.in and toinformistoinfluence.com, also share IP numbers with mail.sdohn.de.