k365.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx01.hornetsecurity.com, mx02.hornetsecurity.com and 2 more. 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.hornetsecurity.com | 94.100.132.8 | mx01.hornetsecurity.com | AS25394 MK Netzdienste GmbH & Co. KG |
| 20 | 3600s | mx02.hornetsecurity.com | 94.100.136.8 | mx02.hornetsecurity.com | AS24679 kyberio GmbH |
| 30 | 3600s | mx03.hornetsecurity.com | 94.100.134.8 | mx03.hornetsecurity.com | AS12676 HKN GmbH |
| 40 | 3600s | mx04.hornetsecurity.com | 94.100.136.7 | mx04.hornetsecurity.com | AS24679 kyberio GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms31584183 |
| v=spf1 redirect=k365.dk.spf.hornetdmarc.com |
| Policy | Record (k365.dk) |
|---|---|
| redirect=k365.dk.spf.hornetdmarc.com | v=spf1 redirect=k365.dk.spf.hornetdmarc.com |
| Policy | Record (_dmarc.k365.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100; fo=0:1; rua=mailto:a.i0p126uk@reports.hornetdmarc.com,mailto:kim@kta.dk; ruf=mailto:f.i0p126uk@reports.hornetdmarc.com |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves k365.dk: no address www.k365.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026101200 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 13:05:38 shown | 653ms | 3 NS 0 A 4 MX | 🔒 Secure |
| 2026-10-04 09:07:10 | 547ms | 3 NS 0 A 4 MX | 🔒 Secure |
| 2026-10-03 05:33:44 | 1310ms | 3 NS 0 A 4 MX | 🔒 Secure |
| 2026-10-01 05:27:18 | 720ms | 3 NS 0 A 4 MX | 🔒 Secure |
| 2026-09-24 06:10:41 | 608ms | 3 NS 0 A 4 MX | 🔒 Secure |
| 2026-08-28 11:19:59 | 701ms | 3 NS 0 A 4 MX | 🔒 Secure |
| 2026-06-28 15:37:02 | 760ms | 3 NS 0 A 4 MX | 🔒 Secure |
| 2026-06-17 12:15:33 | 1261ms | 3 NS 0 A 4 MX | 🔒 Secure |