rcmtf.dk is a .dk domain served by 3 nameservers (ns5.chosting.dk, ns6.chosting.dk, ns7.chosting.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.46 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by rcmtf.dk. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.46 | 3600s | vm1440.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | rcmtf.dk | 185.21.40.46 | vm1440.enterprisecloud.nu | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 178.20.216.125 |
| 🔶 Autoconfig | 178.20.216.125 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 ip4:178.20.216.125 include:spf.chosting.dk include:web.shared.mysmtp.com +a +mx ~all |
| Policy | Record (rcmtf.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:178.20.216.125 include:spf.chosting.dk include:web.shared.mysmtp.com +a +mx ~all |
| Policy | Record (_dmarc.rcmtf.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | rcmtf.dk (all on rcmtf.dk) → 185.21.40.46 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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: 9/10 · policy: ~all
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.rcmtf.dk | ElzosYRg2pDpcRWbqqXZ-RU7DnxZLJTSzWgVqNQbFEM |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026052600 |
| Primary NS (MNAME) | ns5.chosting.dk |
| Responsible (RNAME) | logs@chosting.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 21:12:58 | 804ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 13:23:34 | 9415ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-18 12:27:42 | 640ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-15 09:22:33 | 665ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-17 07:04:27 | 826ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 13:45:57 | 974ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 08:54:35 shown | 701ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 14:47:45 | 1142ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 11:34:30 | 899ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-18 06:52:29 | 1110ms | 3 NS 1 A 1 MX | 🔓 Insecure |