mail-backup.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx01.v10.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx01.v10.dk | 87.104.87.108 | 87.104.87.108.static.dhcp.aura-net.dk | AS204274 AURA Fiber A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mx01.v10.dk → 87.104.87.108 |
| TXT Record |
|---|
| v=spf1 include:spf.qdc.dk -all |
| Policy | Record (mail-backup.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.qdc.dk -all |
| Policy | Record (_dmarc.mail-backup.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves mail-backup.dk: no address www.mail-backup.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 8/10 · policy: -all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026022001 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-08-27 14:14:53 shown | 589ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-25 22:13:25 | 620ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 23:06:20 | 632ms | 2 NS 0 A 1 MX | 🔒 Secure |