`mx2.biduble.com`

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`

`biduble.com`

	DNSSEC	⚠️ Not signed
	A	2a01:238:20a:202:1153::^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
	A	81.169.145.153^{🇩🇪 STRATO81.169.144.0/22 AG}
	NS	`docks09.rzone.de` ⭐
	NS	`shades06.rzone.de`
	MX	`smtpin.rzone.de` ⭐
	SOA	`docks09.rzone.de`hostmaster@strato-rz.de 2026-01-25 #13

Previously MX for

biduble.com

Same first word

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mx2.cloudaccess.net

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mx2.vg

mx2.com

mx2.io

mx2.life

mx2.email

mx2.bplaced.net

mx2.org

mx2.kinghost.net

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mx2.memset.net

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mx2.fr

mx2.se

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mx2.dk

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mx2.me

mx2.cc

mx2.dev

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mx2.vip

mx2.it

mx2.dnsup.net

mx2.in

mx2.info

mx2.gouv.km

Similar names

m2x.alwaysdata.net

2mx.de

2mx.xyz

xm2.ru

2mx.com

xm2.it

x2m.org

m2x.ca

2mx.dev

2xm.dk

m2x.com

2xm.eu

2xm.de

2mx.eu

2xm.com.br

xm2.net

2xm.com.pl

m2x.fr

2mx.it

2mx.cn

x2m.com

m2x.org

m2x.cz

m2x.com.tw

xm2.cn

m2x.io

xm2.org

m2x.eu

2mx.cc

m2x.cn

x2m.co.za

2mx.net

2mx.fr

x2m.de

2mx.org

xm2.us

x2m.biz

2xm.ru

xm2.de

2xm.net

xm2.cl

x2m.com.br

m2x.ru

2mx.co.uk

2mx.at

m2x.app

m2x.co

2mx.info

2xm.pt

m2x.net

xm2.com

2mx.nl

m2x.de

x2m.cn

2xm.info

2mx.ro

2mx.com.br

2xm.com

m2x.it

x2m.ru

2xm.cn

m2x.nl

DNS History

2 records (1 active, 1 former)

●MXsmtpin.rzone.de2026-03-22 → 2026-03-22 · 1 obs

● 2026-03-22 23:54:02

○A89.19.2.172015-06-10 → 2016-09-26 · 3 obs

● 2015-06-10 00:18:32
● 2016-09-26 03:11:56
○ 2026-03-22 23:54:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
biduble.com	shades06.rzone.de, docks09.rzone.de	-

✅ Authoritative Response

Server:217.160.80.136

NS records: shades06.rzone.de, docks09.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for biduble.com (unsigned zone)

⏱️ Timing

Total: 550ms | Queries: -

📄 Records

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

Analysis

Mail Servers

mx2.biduble.com is handled by a single mail server, smtpin.rzone.de.

mx2.biduble.com uses the same mail server setup as other domains, for instance strategy-pro.de, dr-elsberger.de, bremer.l-e-c.com, architekt-mauss.de and freifunk-mittelsachsen.de.

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

mx2.biduble.com - robtex.com

mx2.biduble.com

biduble.com