mx4.system4.nl - robtex.com
mx4.system4.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4f9:3080:29cb::2🇩🇪 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK | ||||||
| A | 65.21.27.51🇫🇮 Hetzner65.21.0.0/16 HETZNER-DC | ||||||
system4.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4f9:3080:29cb::2🇩🇪 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK | ||||||
| A | 65.21.27.51🇫🇮 Hetzner65.21.0.0/16 HETZNER-DC | ||||||
| NS | ns1.openprovider.nl ⭐ | ||||||
| NS | ns2.openprovider.be | ||||||
| NS | ns3.openprovider.eu | ||||||
| MX | mx.spamexperts.com ⭐ | ||||||
| MX | fallbackmx.spamexperts.eu(200) | ||||||
| MX | lastmx.spamexperts.net(300) | ||||||
| TXT | v=spf1 a mx ip4:65.21.27.51 ip6:2a01:4f9:3080:29cb::2 include:one.zoho.eu a:m... | ||||||
| SOA | ns1.openprovider.nldns@openprovider.eu 2026-03-03 #1 | ||||||
WOT: SAFE (35/100)
Previously MX for
Same first word
Similar names
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| system4.nl | ns1.openprovider.nl, ns2.openprovider.be, ns3.openprovider.eu | - |
✅ Authoritative Response
Server:162.159.26.10
NS records: ns1.openprovider.nl, ns2.openprovider.be, ns3.openprovider.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 551ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 65.21.27.51 |
| AAAA | 1 | 2a01:4f9:3080:29cb::2 |
Analysis
IP Addresses
mx4.system4.nl points to two IP numbers: 2a01:4f9:3080:29cb::2 and 65.21.27.51.
Other host names such as mail.bestofchina.nl, server100.system4.nl, vps101.system4.nl, kasteeldehaar.com and mail.bestofbelize.nl share IPs with mx4.system4.nl.