`mail.quadus.de`

DNSSEC	⚠️ Not signed
A	217.7.237.39^{🇩🇪 DTAG217.0.0.0/13 Deutsche Telekom AG, Internet service provider}
		PTR	`mail.quadus.de`
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`

`quadus.de`

	DNSSEC	⚠️ Not signed
	A	185.60.251.251^{🇩🇪 Cloudflare185.60.251.0/24}
	NS	`docks16.rzone.de` ⭐
	NS	`shades09.rzone.de`
	MX	`quadus-de.mail.cloud.nospamproxy.com` ⭐
	TXT	`v=spf1 include:spf.protection.outlook.com include:autotask.net include:spf.qu...`
	TXT	`5WsgZwNYQ+6QJHm9/ulRkuyaDEFE32snxNhqp2uchVY=`
	SOA	`docks16.rzone.de`hostmaster@strato-rz.de 2020-05-14 #21

WOT: SAFE (61/100)

PTR for

39.237.7.217.in-addr.arpa

Previously MX for

quadus.de

Same first word

mail.co.id

mail.top

mail.health-carereform.com

mail.iki.fi

mail.gouv.ml

mail.limited

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DNS History

3 records (2 active, 1 former)

○MXsmtp.rzone.de2015-08-21 → 2016-09-24 · 4 obs

● 2015-08-21 07:57:20
● 2016-09-24 18:07:56
○ 2026-03-11 08:31:02
○ 2026-04-24 01:02:56

●MXsmtpin.rzone.de2026-03-11 → 2026-04-24 · 3 obs

○ 2016-09-24 18:07:56
● 2026-03-11 08:31:02
● 2026-04-24 01:02:56

●A217.7.237.392015-08-21 → 2026-04-24 · 2 obs

● 2015-08-21 07:57:20
● 2026-04-24 01:02:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
quadus.de	docks16.rzone.de, shades09.rzone.de	-

✅ Authoritative Response

Server:185.132.34.136

NS records: docks16.rzone.de, shades09.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for quadus.de (unsigned zone)

⏱️ Timing

Total: 1187ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.7.237.39`
MX	1	`smtpin.rzone.de (pri: 5)`

Analysis

IP Addresses

mail.quadus.de points to a single IP address: 217.7.237.39.

Mail Servers

The mail server for mail.quadus.de is smtpin.rzone.de.

mail.quadus.de uses the same mail server setup as other domains, for instance go-offline.de, mda3.de, markovich.de, freemailnet.de and extertal.eu.

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

mail.quadus.de - robtex.com

mail.quadus.de

quadus.de