mxbox.dk is a .dk domain served by 2 nameservers (lloyd.ns.cloudflare.com, tess.ns.cloudflare.com). It was registered on 20 July 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mxbox-dk.f-v1.mx.microsoft. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms62933918 |
| MS=ms78465675 |
| niVDAT5r10io5WbhNJuqYxqiLkRa5gDxP8y7gbw0wK1HSKd7SroiVRPX8rckYxbG/gS+FOqqrqSCS0mO7FXUEA== |
| okFKGYUcjq7nkMEpoREjOXKiVWOgcD8R1JQoy4MG5PAeFgJYMlCd3+RMZNVy0CZ/mzSn3/bp4rBuBpLDIMH04w== |
| v=spf1 mx include:spf.protection.outlook.com -all |
| Policy | Record (mxbox.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.mxbox.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:62b76280011444298bb7b752f9a590ec@dmarc-reports.cloudflare.net,mailto:dmarc.rua@mxbox.dk ; ruf=mailto:dmarc.ruf@mxbox.dk; |
| Check | Result |
|---|---|
| Status | 🧪 Testing |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | testing |
| Policy ID | 20240122192743Z |
| max_age | 86400s |
| Policy MX | mxbox-dk.f-v1.mx.microsoft, gw.mxbox.dk, gw.heff.dk |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:tls.rua@mxbox.dk |
| www | 104.21.62.108 172.67.223.15 2606:4700:3031::ac43:df0f 2606:4700:3033::6815:3e6c (AS13335) (address records, no CNAME) |
| www vs bare domain | Only www resolves mxbox.dk: no address (all like this)www.mxbox.dk: 104.21.62.108 172.67.223.15 2606:4700:3031::ac43:df0f 2606:4700:3033::6815:3e6c (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.mxbox.dk | _B7DN-Z_800gMZb4ry31jrM__azhXRL8M5Ydzk-wKm0 |
| TXT | _acme-challenge.mxbox.dk | sLV_c8R5PSdJBdQA5dE1APrT3kyl5IgCQXeEg-Vzjv4 |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | C1AD7778796D20BCA65C889A26550211… |
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 54883CC5F1849331E6BF5002C3129D20… |
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | EA7A25255D111FC3CE4CB8FABE3ADF9C… |
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | C495D9E40F7E625BE22F83CC64305182… |
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | 5F88694615E4C61686E106B84C3338C6… |
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | A6C267923B26A4A9617EDA73D8DB4FBC… |
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | 38D895F5105BC2545822C17A2444F4B0… |
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 133086C7B822371A4A3304F1661A7880… |
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | 6EBFF927297A5B3AAF5EAE672252C36A… |
| SMTP _25._tcp.mxbox-dk.f-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 803F7447CC75B208DBCA042346F5D8DF… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2412209433 |
| Primary NS (MNAME) | lloyd.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2009-07-20 |
| Expires | 2030-07-31 (1379d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 20:07:57 | 3760ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-15 13:11:17 | 912ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-14 11:51:44 | 4777ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-04 02:29:00 | 707ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-03 02:27:49 | 1848ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-30 02:02:07 | 969ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-23 17:19:42 | 867ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-17 03:34:39 | 2534ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-13 17:08:29 | 1746ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-06 16:18:27 | 1303ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-04 19:29:26 | 1338ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-30 13:09:56 | 1919ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-27 22:58:53 | 717ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-21 01:11:39 | 2987ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-17 16:36:34 | 5038ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-16 16:24:37 | 1341ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-15 15:15:29 shown | 4718ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-14 11:41:09 | 1417ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-27 19:42:06 | 1466ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-23 18:02:20 | 2805ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-16 20:51:05 | 2436ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-13 15:23:00 | 1739ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-08 21:04:30 | 2240ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-07 00:17:47 | 10714ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-03 16:08:21 | 3616ms | 2 NS 0 A 3 MX | 🔒 Secure |