| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.zfu.dk | 5.186.52.29 | 5.186.52.29.static.fibianet.dk | AS44869 FIBIA P/S |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026041704 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-27 12:50:50 | 574ms | 3 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-24 17:27:24 | 2617ms | 3 NS 0 A 1 MX | ❓ Unknown | View |
| 2026-06-22 23:10:50 | 1174ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-19 22:25:28 | 418ms | 3 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 06:24:20 | 10359ms | 3 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 06:06:50 | 410ms | 3 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 06:04:13 | 1199ms | 3 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 06:00:56 | 494ms | 3 NS 0 A 1 MX | 🔓 Insecure | View |