mx.openbook.nl - robtex.com
mx.openbook.nl
openbook.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:238:20a:202:1165::🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| A | 81.169.145.165🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| NS | docks20.rzone.de ⭐ | ||||||
| NS | shades15.rzone.de | ||||||
| MX | smtp.rzone.de ⭐ | ||||||
| SOA | docks20.rzone.dehostmaster@strato-rz.de 2020-06-18 #14 | ||||||
Previously MX for
Same first word
DNS History
2 records (1 active, 1 former)
○A127.0.0.12015-08-15 → 2015-08-15 · 3 obs
● 2015-08-15 11:07:40
○ 2015-12-02 04:37:18
○ 2026-05-12 23:29:18
○ 2015-12-02 04:37:18
○ 2026-05-12 23:29:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| openbook.nl | docks20.rzone.de, shades15.rzone.de | - |
✅ Authoritative Response
Server:185.132.34.142
NS records: docks20.rzone.de, shades15.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openbook.nl (unsigned zone)
⏱️ Timing
Total: 4816ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| MX | 1 | smtp.rzone.de (pri: 5) |
Analysis
Mail Servers
mx.openbook.nl is served by a single mail server, smtp.rzone.de.