`mail1.it-learning.de`

	DNSSEC	⚠️ Not signed
	A	2a03:4000:61:bcc5::21:8277^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
	A	202.61.233.138^{🇩🇪 netcup-AS202.61.233.0/24}

`it-learning.de`

	DNSSEC	⚠️ Not signed
	A	2a03:4000:61:bcc5::21:8277^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
	A	202.61.233.138^{🇩🇪 netcup-AS202.61.233.0/24}
	NS	`root-dns.netcup.net` ⭐
	NS	`second-dns.netcup.net`
	NS	`third-dns.netcup.net`
	MX	`mail.it-learning.de` ⭐
	MX	`mxe98c.netcup.net`⁽⁵⁰⁾
	TXT	`v=spf1 mx a include:_spf.webhosting.systems ~all`
	SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2025-05-05 #14

Previously MX for

it-learning.de

Same first word

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DNS History

3 records (2 active, 1 former)

●A202.61.233.1382026-02-15 → 2026-03-31 · 3 obs

○ 2017-10-25 01:30:48
● 2026-02-15 12:15:22
● 2026-03-31 12:30:26

●A2a03:4000:61:bcc5::21:82772026-02-15 → 2026-03-31 · 3 obs

○ 2017-10-25 01:30:48
● 2026-02-15 12:15:22
● 2026-03-31 12:30:26

○A37.17.224.732017-10-25 → 2017-10-25 · 3 obs

● 2017-10-25 01:30:48
○ 2026-02-15 12:15:22
○ 2026-03-31 12:30:26

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:37.221.199.199

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for it-learning.de (unsigned zone)

⏱️ Timing

Total: 712ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.61.233.138`
AAAA	1	`2a03:4000:61:bcc5::21:8277`

Analysis

IP Addresses

mail1.it-learning.de points to two IP numbers: 2a03:4000:61:bcc5::21:8277 and 202.61.233.138.

Other host names such as mx0.das-grosse-beben.de, capangil.de, keiselt.de, mail2.it-learning.de and mx0.jlmb.eu share IPs with mail1.it-learning.de.

mail1.it-learning.de - robtex.com