`mailserver2.ist-sysadmin.de`

DNSSEC	⚠️ Not signed
A	2a01:4f8:13b:1c02:188:40:188:153^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		PTR	`mailserver2.ist-sysadmin.de`
A	188.40.188.153^{🇩🇪 Hetzner188.40.0.0/16 HETZNER-RZ-FKS-BLK1}

`ist-sysadmin.de`

	DNSSEC	⚠️ Not signed
	A	62.75.208.102
	NS	`ns1.ist-sysadmin.de` ⭐
	NS	`ns2.ist-sysadmin.de`
	MX	`mailserver1.ist-sysadmin.de` ⭐
	TXT	`v=spf1 mx -all`
	SOA	`ns1.ist-sysadmin.de`hostmaster@gerbig.info 2025-07-04 #1

PTR for

153.188.40.188.in-addr.arpa

3.5.1.0.8.8.1.0.0.4.0.0.8.8.1.0.2.0.c.1.b.3.1.0.8.f.4.0.1.0.a.2.ip6.arpa

MX for

gerbig.info

tierarzt-koeddingen.de

Same first word

mailserver2.ddns.net

mailserver2.net

mailserver2.com

Similar names

servermail2.com

server2mail.de

DNS History

2 records (2 active, 0 former)

●A188.40.188.1532026-02-18 → 2026-07-23 · 2 obs

● 2026-02-18 19:39:16
● 2026-07-23 12:06:02

●A2a01:4f8:13b:1c02:188:40:188:1532026-02-18 → 2026-07-23 · 2 obs

● 2026-02-18 19:39:16
● 2026-07-23 12:06:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
ist-sysadmin.de	ns2.ist-sysadmin.de, ns1.ist-sysadmin.de	2 records

✅ Authoritative Response

Server:188.40.188.157

NS records: ns2.ist-sysadmin.de, ns1.ist-sysadmin.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ist-sysadmin.de (unsigned zone)

⏱️ Timing

Total: 701ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`188.40.188.153`
AAAA	1	`2a01:4f8:13b:1c02:188:40:188:153`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.ist-sysadmin.de, ns2.ist-sysadmin.de)

Analysis

Mail Server Role

mailserver2.ist-sysadmin.de serves as a mail server for gerbig.info and tierarzt-koeddingen.de.

mailserver1.ist-sysadmin.de frequently appears as a mail server alongside mailserver2.ist-sysadmin.de.

IP Addresses

mailserver2.ist-sysadmin.de has two IP addresses: 188.40.188.153 and 2a01:4f8:13b:1c02:188:40:188:153

mailserver2.ist-sysadmin.de - robtex.com