`mail.postel-engineering.de`

DNSSEC	⚠️ Not signed
MX	`smtpin.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::1097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtpin.rzone.de`
		A	81.169.145.97^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtpin.rzone.de`

`postel-engineering.de`

	DNSSEC	⚠️ Not signed
	A	2a01:238:20a:202:1158::^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
	A	81.169.145.158^{🇩🇪 STRATO81.169.144.0/22 AG}
	NS	`docks07.rzone.de` ⭐
	NS	`shades16.rzone.de`
	MX	`mx01.mailsecurity.cloud` ⭐
	MX	`mx02.mailsecurity.cloud` ⭐
	TXT	`v=spf1 include:spf.protection.outlook.com include:spf.mailsecurity.cloud -all`
	SOA	`docks07.rzone.de`hostmaster@strato-rz.de 2025-04-11 #25

Previously MX for

postel-engineering.de

Same first word

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mail.re

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mail.rec.br

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mail.(0x6c6f6c697461)punk.jp

mail.sc

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mail.priv.pl

mail.mw

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mail.co.nz

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DNS History

3 records (1 active, 2 former)

●MXsmtpin.rzone.de2026-04-10 → 2026-04-25 · 2 obs

● 2026-04-10 11:12:24
● 2026-04-25 13:53:32

○A62.75.161.522015-07-15 → 2015-11-20 · 4 obs

● 2015-07-15 08:55:26
● 2015-11-20 18:15:44
○ 2016-03-02 08:25:38
○ 2026-04-25 13:53:32

○A80.190.241.2352016-03-02 → 2016-07-09 · 5 obs

○ 2015-11-20 18:15:44
● 2016-03-02 08:25:38
● 2016-07-09 12:01:30
○ 2026-04-10 11:12:24
○ 2026-04-25 13:53:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	z.nic.de, f.nic.de, a.nic.de	-
postel-engineering.de	shades16.rzone.de, docks07.rzone.de	-

✅ Authoritative Response

Server:217.160.80.134

NS records: shades16.rzone.de, docks07.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postel-engineering.de (unsigned zone)

⏱️ Timing

Total: 1562ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	1	`smtpin.rzone.de (pri: 5)`

Analysis

Mail Servers

mail.postel-engineering.de is handled by a single mail server, smtpin.rzone.de.

mail.postel-engineering.de shares the same mail server setup as other domains, for instance liq-bar.de, zeitwohlstand.eu, pro-pictures-hamburg.com, mail.configmgr.net and rtl-terminal.com.

smtpin.rzone.de resolves to two IPs: 2a01:238:20a:202:50f0::1097 and 81.169.145.97.

mail.postel-engineering.de - robtex.com