flexmail.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was registered on 29 January 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.237.96.43 is hosted by Kamatera Inc (AS204548) in Germany. Mail is handled by mail.flexmail.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 |
|---|---|---|---|---|---|---|---|
| 185.237.96.43 | 600s | yjp1.nc4julyloh.com | AS204548 | Kamatera Inc | 185.237.96.0/23 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mail.flexmail.dk | 185.237.96.43 | yjp1.nc4julyloh.com | AS204548 Kamatera Inc |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | flexmail.dk → 185.237.96.43 |
| 🔶 Autoconfig | flexmail.dk → 185.237.96.43 |
| TXT Record |
|---|
| google-site-verification=YsemhRgM4KunXOxWEo0k7KzY16_YAvEb6GclIFvoXlk |
| v=spf1 a mx include:mailgun.org ~all |
| Policy | Record (flexmail.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:mailgun.org ~all |
| Policy | Record (_dmarc.flexmail.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| Check | Result |
|---|---|
| Status | 🧪 Testing |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | testing |
| Policy ID | 202512021600 |
| max_age | 604800s |
| Policy MX | mail.flexmail.dk |
| www CNAME | flexmail.dk (all on flexmail.dk) → 57.129.53.233 (AS16276) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 2048 bit |
| s1 | s1.domainkey.u23516635.wl136.sendgrid.net | 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: 7/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.flexmail.dk | flexmail.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.flexmail.dk | DANE-EE · SPKI · SHA-256 | 60A9E5B20435E2B0F67F082407B359A5… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2022101548 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2008-01-29 |
| Expires | 2027-04-30 (195d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-22 19:50:58 | 1034ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-29 00:08:32 | 959ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-13 15:25:53 | 796ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-12 01:17:02 | 1089ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-07 11:47:20 | 3464ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 18:37:25 | 665ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 08:04:39 | 687ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 03:55:05 shown | 957ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:08:32 | 717ms | 3 NS 1 A 1 MX | 🔒 Secure |