smtp.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 15 April 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.51.78.140 is hosted by Powernet Aps (AS205984) in Denmark. Mail is handled by mx1.dandomain.dk, mx2.dandomain.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 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 |
|---|---|---|---|---|---|---|---|
| 185.51.78.140 | 180s | smtp.dk | AS205984 | Powernet Aps | 185.51.78.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.dandomain.dk | 212.237.249.50 | mx1.dandomain.dk | AS48854 team.blue Denmark A/S |
| 20 | 3600s | mx2.dandomain.dk | 46.36.209.11 | mx2.dandomain.dk | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.outlookmail.dk → 46.36.209.50 |
| 🔶 Autoconfig | autoconfig-mf.dandomain.dk → 212.237.249.54 |
| TXT Record |
|---|
| c5ykxC4c |
| google-site-verification=XzsexA2izDngqaic1TO2kvT1K7vXruYoqdIopf3KFOk |
| v=spf1 include:_spf-pack.mysmtp.com ip4:185.163.189.40 ip4:212.237.249.58 ~all |
| yahoo-verification-key=YNh9UawhV2hqZHQzeSQ/NJJONBeBau3jue8RdxsHLEs= |
| Policy | Record (smtp.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf-pack.mysmtp.com ip4:185.163.189.40 ip4:212.237.249.58 ~all |
| Policy | Record (_dmarc.smtp.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:abuse@smtp.dk; |
| www CNAME | smtp.dk (all on smtp.dk) |
| www vs bare domain | Same network |
| 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 |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~1024 bit below 2048 bit |
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: 5/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.smtp.dk | a9gJUyhHyQHWE_0HgjtZkwrWB-MQqKjcyypplTj27dc |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026070101 |
| Primary NS (MNAME) | ns.dandomain.dk |
| Responsible (RNAME) | hostmaster@dandomain.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 1997-04-15 |
| Expires | 2030-06-30 (1345d) |
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 |
|---|---|
| borjomi.dk | Punktum dk A/S (direct) |
| findsmtp.dk | Punktum dk A/S (direct) |
| hans.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 05:48:42 | 670ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-01 13:53:23 | 506ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-01 19:09:08 shown | 671ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 14:00:14 | 1778ms | 2 NS 1 A 2 MX | 🔒 Secure |