| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 83.91.91.15 | 3600s | 83-91-91-15-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 83.90.0.0/15 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.ithozting.dk | 83.91.91.2 | mail.ithozting.dk | AS3292 TDC Holding A/S |
| 20 | 3600s | post.formula.nu | 83.91.91.2 | mail.ithozting.dk | AS3292 TDC Holding A/S |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | post.formula.nu |
| TXT Record |
|---|
| v=spf1 ip4:83.91.91.0/26 ip4:185.107.168.46 -all |
| Policy | Record (sbfonden.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:83.91.91.0/26 ip4:185.107.168.46 -all |
| Policy | Record (_dmarc.sbfonden.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=reject; rua=mailto:dmarcreports@scanmail.nu; |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026050401 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |