`mx0.3h3.de`

DNSSEC	⚠️ Not signed
A	46.38.243.56^{🇩🇪 netcup-AS46.38.240.0/22}
		PTR	`mx0.3h3.de`

`3h3.de`

	DNSSEC	⚠️ Not signed
	A	2a01:4f8:161:6248::2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
	A	5.9.61.135^{🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5}
	NS	`root-dns.netcup.net` ⭐
	NS	`second-dns.netcup.net`
	NS	`third-dns.netcup.net`
	MX	`secure.3h3.de` ⭐
	MX	`mx0.3h3.de`⁽²⁰⁾
	MX	`mx1.3h3.de`⁽³⁰⁾
	TXT	`v=spf1 ip4:188.68.59.105 ip4:46.38.231.32 ip4:188.68.62.112 ip4:46.38.243.56 ...`
	TXT	`v=DMARC1; p=none; rua=mailto:postmaster@3h3.de; ruf=mailto:postmaster@3h3.de;...`
	SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2026-03-09 #0

PTR for

56.243.38.46.in-addr.arpa

MX for

server4000.de

5short.de

3h3.de

maximeveit.de

server1000.de

1w1.de

annetteduffner.de

server30.de

null-pointer.de

Previously MX for

server100.de

Same first word

mx0.ru

mx0.org

mx0.eu

mx0.fr

mx0.de

mx0.net

mx0.in

mx0.email

mx0.nl

mx0.kinghost.net

mx0.mx

mx0.com

mx0.na4u.ru

mx0.me

mx0.ca

Similar names

x0m.net

0mx.com

x0m.de

m0x.ru

0mx.de

m0x.org

m0x.de

xm0.net

m0x.io

xm0.cc

m0x.net

0mx.top

xm0.ru

m0x.com

xm0.com

x0m.ru

0mx.net

0xm.de

0mx.cc

0xm.com

0mx.org

0xm.cc

x0m.com

0mx.cn

0xm.net

m0x.us

m0x.cn

DNS History

1 record (1 active, 0 former)

●A46.38.243.562018-05-17 → 2026-03-29 · 2 obs

● 2018-05-17 07:42:28
● 2026-03-29 18:03:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
3h3.de	third-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net	-

✅ Authoritative Response

Server:188.68.63.68

NS records: third-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 3h3.de (unsigned zone)

⏱️ Timing

Total: 902ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.38.243.56`

Analysis

Mail Server Role

mx0.3h3.de acts as the mail server for server4000.de, 5short.de, 3h3.de, maximeveit.de, server1000.de and a few other domains.

mx1.3h3.de and secure.3h3.de are commonly used as mail servers alongside mx0.3h3.de.

IP Addresses

mx0.3h3.de points to a single IP: 46.38.243.56.

Other host names such as mx1.3h3.de and secure.3h3.de share IP numbers with mx0.3h3.de.

mx0.3h3.de - robtex.com

mx0.3h3.de

3h3.de