| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 164.138.212.139 | 3600s | caliboweb.cyberneticos.net | AS198968 | Cyberneticos Hosting SL | 164.138.212.0/23 | 🇪🇸 Spain | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.colbus.dk | 164.138.212.139 | caliboweb.cyberneticos.net | AS198968 Cyberneticos Hosting SL |
| TXT Record |
|---|
| v=spf1 a mx ip4:164.138.212.139 -all |
| Policy | Record (colbus.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx ip4:164.138.212.139 -all |
| Policy | Record (_dmarc.colbus.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; sp=none |
| 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 | 2025112804 |
| Primary NS (MNAME) | caliboweb1.cyberneticos.com |
| Responsible (RNAME) | hostmaster@colbus.dk |
| Refresh | 3600s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |