`mail.optiwohn.de`

DNSSEC	⚠️ Not signed
A	5.189.128.134^{🇩🇪 CONTABO5.189.128.0/20}
		PTR	`vmi3270118.contaboserver.net`

`optiwohn.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:5ca6^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:c48d^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.92.166^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.196.141^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`anna.ns.cloudflare.com` ⭐
NS	`scott.ns.cloudflare.com`
MX	`mail.optiwohn.de` ⭐
TXT	`v=spf1 ip4:5.189.128.134 include:mail.optiwohn.de ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.92.166, 172.67.196.141
		IPv6 hints	2606:4700:3030::6815:5ca6, 2606:4700:3036::ac43:c48d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=223, name=cloudflare-ech.com
SOA	`anna.ns.cloudflare.com`dns@cloudflare.com serial=2411116819

MX for

optiwohn.de

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DNS History

2 records (1 active, 1 former)

○A176.9.45.1182015-05-13 → 2016-04-14 · 4 obs

● 2015-05-13 10:52:12
● 2016-04-14 04:08:56
○ 2026-04-03 11:45:54
○ 2026-08-02 00:47:58

●A5.189.128.1342026-04-03 → 2026-08-02 · 3 obs

○ 2016-04-14 04:08:56
● 2026-04-03 11:45:54
● 2026-08-02 00:47:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	z.nic.de, a.nic.de, f.nic.de	-
optiwohn.de	anna.ns.cloudflare.com, scott.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.102

NS records: anna.ns.cloudflare.com, scott.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optiwohn.de (unsigned zone)

⏱️ Timing

Total: 672ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.189.128.134`

Analysis

Mail Server Role

mail.optiwohn.de serves as a mail server for optiwohn.de.

IP Addresses

mail.optiwohn.de points to a single IP number: 5.189.128.134.

Additional host names — mail.dercleaner.info, mail.diebruecke.info, vmi3270118.contaboserver.net and two others — share IP numbers with mail.optiwohn.de.

mail.optiwohn.de - robtex.com

mail.optiwohn.de

optiwohn.de