mail.j-sys.de - robtex.com
mail.j-sys.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 138.199.204.249🇩🇪 Hetzner138.199.128.0/17 HETZNER-DC | ||||||
| PTR | mailcow01.j-sys.de | ||||||
j-sys.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4f8:d0a:27bd::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 138.199.204.249🇩🇪 Hetzner138.199.128.0/17 HETZNER-DC | ||||||
| NS | ns1.your-server.de ⭐ | ||||||
| NS | ns.second-ns.com | ||||||
| NS | ns3.second-ns.de | ||||||
| MX | mail.j-sys.de ⭐ | ||||||
| TXT | v=spf1mxa-all | ||||||
| SOA | ns1.your-server.depostmaster@your-server.de 2025-12-10 #0 | ||||||
WOT: SAFE (68/100)
MX for
Same first word
Similar names
DNS History
2 records (1 active, 1 former)
●A138.199.204.2492026-02-17 → 2026-03-29 · 3 obs
○ 2016-11-20 21:36:18
● 2026-02-17 12:31:46
● 2026-03-29 13:14:22
● 2026-02-17 12:31:46
● 2026-03-29 13:14:22
○A85.13.145.1102015-07-24 → 2016-11-20 · 4 obs
● 2015-07-24 00:10:50
● 2016-11-20 21:36:18
○ 2026-02-17 12:31:46
○ 2026-03-29 13:14:22
● 2016-11-20 21:36:18
○ 2026-02-17 12:31:46
○ 2026-03-29 13:14:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| j-sys.de | ns.second-ns.com, ns1.your-server.de, ns3.second-ns.de | 4 records |
✅ Authoritative Response
Server:213.239.204.242
NS records: ns.second-ns.com, ns1.your-server.de, ns3.second-ns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for j-sys.de (unsigned zone)
⏱️ Timing
Total: 609ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 138.199.204.249 |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.your-server.de, ns1.your-server.de, ns3.second-ns.de...)
Analysis
Mail Server Role
The mail server for j-sys.de is mail.j-sys.de.
IP Addresses
mail.j-sys.de points to a single IP number: 138.199.204.249.
Other host names such as mailcow01.j-sys.de and j-sys.de share IP numbers with mail.j-sys.de.