mailpass.dk is a .dk domain served by 2 nameservers (ns1.heimdns.net, ns2.heimdns.net). It was registered on 21 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.52.105.157 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx.sohola.net. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.52.105.157 | 1337s | 0x5734699d.static.cust.fastspeed.dk | AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 1 | 1337s | mx.sohola.net | 213.142.141.225 2a00:b921:1:1337:10:141:0:225 |
mx.sohola.net mx.sohola.net |
AS47527 DLX A/S AS47527 DLX A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a09:5e41:b02:580:42:da7a:0:157 | 30s | — | AS209424 | Fastspeed A/s | 2a09:5e41:800::/37 | 🇩🇰 Denmark | Ulfborg |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h2" ipv4hint=87.52.105.157 ipv6hint=2a09:5e41:b02:580:42:da7a:0:157 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (mailpass.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.mailpass.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; |
| www CNAME | mailpass.dk (all on mailpass.dk) |
| www vs bare domain | Same network mailpass.dk: 87.52.105.157 2a09:5e41:b02:580:42:da7a:0:157 (AS3292 AS209424) www.mailpass.dk: 87.52.105.157 2a09:5e41:b02:580:42:da7a:0:157 (AS3292 AS209424) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 0/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.sohola.net | DANE-EE · SPKI · SHA-256 | B773093E63819E4DD4910A7D61C2F318… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Key type | Algorithm | Public key |
|---|---|---|
| KSK | ECDSA P-256/SHA-256 | EDeeSt2bMXo2WfSiiGJwk5w8aaA4SGL4jkcxLlxQ… |
| Field | Value |
|---|---|
| Serial | 2026062400 |
| Primary NS (MNAME) | ns1.heimdns.net |
| Responsible (RNAME) | hostmaster@heimdns.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2026-03-21 |
| Expires | 2027-03-20 (154d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| holt-larsen.dk | Punktum dk A/S (direct) |
| ipbot.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 13:53:46 | 1813ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 17:36:27 | 6347ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 15:47:40 | 6480ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 04:51:15 | 4179ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-03 16:47:29 | 2403ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-30 19:00:43 | 3075ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 08:52:35 | 4296ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 06:46:11 | 5911ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 22:24:44 | 838ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 21:53:35 | 2741ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 12:52:12 | 7913ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 12:35:18 | 241ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 12:31:46 shown | 565ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 12:07:27 | 9185ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 15:59:20 | 12811ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 12:00:24 | 1510ms | 2 NS 1 A 1 MX | 🔒 Secure |