| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns51.gullestrupnet.dk | 82.165.189.144 | gn51.gullestrupnet.dk | AS8560 IONOS SE |
| ns52.gullestrupnet.dk | 82.165.203.134 | mail51.gullestrupnet.dk | AS8560 IONOS SE |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 82.165.189.144 | — | gn51.gullestrupnet.dk | AS8560 | IONOS SE | 82.165.0.0/16 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.smartermail.dk | 185.125.83.252 | mail.tunenet.dk | AS31027 GlobalConnect A/S |
| 20 | — | backupmail.gulestrupnet.dk | — | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.125.83.252 |
| 🔶 Autoconfig | 185.125.83.252 |
| TXT Record |
|---|
| v=spf1 ip4:82.165.203.134 ip4=82.165.189.144 ip4=185.125.83.252 +a +mx -all |
| Policy | Record (smartermail.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:82.165.203.134 ip4=82.165.189.144 ip4=185.125.83.252 +a +mx -all |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2025030701 |
| Primary NS (MNAME) | ns51.gullestrupnet.dk |
| Responsible (RNAME) | hostmaster@gullestrupnet.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 10800s |