post-4u.de - robtex.com
post-4u.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2003:a:73:3c00:4ecc:6aff:fe03:22fd🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space | ||||||
| PTR | ns.its-se.de | ||||||
| PTR | srv02.its-se.de | ||||||
| A | 87.138.115.175🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider | ||||||
| NS | ns2.its-se.de ⭐ | ||||||
| A | 2a01:4f9:c010:7713::2🇫🇮 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns2.its-se.de | ||||||
| A | 95.217.158.174🇫🇮 Hetzner95.217.0.0/16 HETZNER-DC | ||||||
| PTR | ns2.its-se.de | ||||||
| NS | ns.its-se.de | ||||||
| A | 2003:a:73:3c00:4ecc:6aff:fe03:22fd🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space | ||||||
| PTR | ns.its-se.de | ||||||
| PTR | srv02.its-se.de | ||||||
| A | 87.138.115.175🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider | ||||||
| PTR | ns.its-se.de | ||||||
| PTR | srv02.its-se.de | ||||||
| MX | mail.post-4u.de ⭐ | ||||||
| A | 2003:a:73:3c00:4ecc:6aff:fe03:22fd🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space | ||||||
| PTR | ns.its-se.de | ||||||
| PTR | srv02.its-se.de | ||||||
| A | 87.138.115.175🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider | ||||||
| PTR | ns.its-se.de | ||||||
| PTR | srv02.its-se.de | ||||||
| TXT | v=spf1 a mx a:post-4u.de mx:post-4u.de ip4:192.168.2.20 ip4:87.138.115.175 ip... | ||||||
| SOA | ns.its-se.deroot@ns.its-se.de 2026-02-03 #0 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1774989522 | ||||||
Subdomains
mail.post-4u.de |
Same first word
DNS History
10 records (5 active, 5 former)
○NSauth2.artfiles.de2015-08-03 → 2016-03-12 · 4 obs
● 2016-03-12 17:03:10
○ 2016-07-04 05:39:24
○ 2026-03-31 20:49:52
○NSns.die-pc-maus.de2015-08-03 → 2016-03-12 · 4 obs
● 2016-03-12 17:03:10
○ 2016-07-04 05:39:24
○ 2026-03-31 20:49:52
●NSns.its-se.de2026-03-07 → 2026-03-31 · 3 obs
● 2026-03-07 14:15:38
● 2026-03-31 20:49:52
○NSns.nethosting-1a.de2016-07-04 → 2017-04-10 · 5 obs
● 2016-07-04 05:39:24
● 2017-04-10 15:08:08
○ 2026-03-07 14:15:38
○ 2026-03-31 20:49:52
○NSns1.ispapi.net2016-07-04 → 2017-04-10 · 5 obs
● 2016-07-04 05:39:24
● 2017-04-10 15:08:08
○ 2026-03-07 14:15:38
○ 2026-03-31 20:49:52
●NSns2.its-se.de2026-03-07 → 2026-03-31 · 3 obs
● 2026-03-07 14:15:38
● 2026-03-31 20:49:52
●MXmail.post-4u.de2015-08-03 → 2026-03-31 · 2 obs
● 2026-03-31 20:49:52
○A148.251.77.1252015-08-03 → 2016-03-12 · 4 obs
● 2016-03-12 17:03:10
○ 2016-07-04 05:39:24
○ 2026-03-31 20:49:52
●A2003:a:73:3c00:4ecc:6aff:fe03:22fd2016-07-04 → 2026-03-31 · 3 obs
● 2016-07-04 05:39:24
● 2026-03-31 20:49:52
●A87.138.115.1752016-07-04 → 2026-03-31 · 3 obs
● 2016-07-04 05:39:24
● 2026-03-31 20:49:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| post-4u.de | ns.its-se.de, ns2.its-se.de | 4 records |
✅ Authoritative Response
Server:95.217.158.174
NS records: ns.its-se.de, ns2.its-se.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for post-4u.de (unsigned zone)
⏱️ Timing
Total: 771ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 87.138.115.175 |
| AAAA | 1 | 2003:a:73:3c00:4ecc:6aff:fe03:22fd |
| NS | 2 | ns2.its-se.de, ns.its-se.de |
| MX | 1 | mail.post-4u.de (pri: 5) |
| TXT | 1 | v=spf1 a mx a:post-4u.de mx:post-4u.de i |
| SOA | 1 | ns.its-se.de root.ns.its-se.de |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.its-se.de, ns2.its-se.de, ns.its-se.de...)
Analysis
Hierarchy
The parent of mail.post-4u.de is post-4u.de.
IP Addresses
post-4u.de points to two IP numbers: 2003:a:73:3c00:4ecc:6aff:fe03:22fd and 87.138.115.175.
Other host names such as gaseinbau.de, direct-email.de, zavoli.de, mail.gaseinbau.de and mail.its-se.de share IPs with post-4u.de.
Name Servers
post-4u.de is delegated to two name servers: ns2.its-se.de and ns.its-se.de.
post-4u.de shares the same name server setup as email-simple.de, email-engine.de, kinder-heim.de, imheim.de and zavoli.at.
Host names with two IP numbers: ns2.its-se.de points to: 2a01:4f9:c010:7713::2 and 95.217.158.174; ns.its-se.de points to: 2003:a:73:3c00:4ecc:6aff:fe03:22fd and 87.138.115.175.
Mail Servers
post-4u.de is handled by a single mail server, mail.post-4u.de.
mail.post-4u.de points to two IPs: 2003:a:73:3c00:4ecc:6aff:fe03:22fd and 87.138.115.175.