| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.twelveletter.com | 149.210.169.89 2a01:7c8:aaac:328::1 |
sigstop.twelveletter.com sigstop.twelveletter.com |
AS20857 Signet B.V. AS20857 Signet B.V. |
| TXT Record |
|---|
| v=spf1 a:mail.twelveletter.com -all |
| Policy | Record (bodilfrederiksen.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:mail.twelveletter.com -all |
| Policy | Record (_dmarc.bodilfrederiksen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:qb8tp6zs@ag.dmarcian.com; |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026081101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-27 21:08:26 | 817ms | 2 NS 0 A 1 MX | 🔒 Secure | View |
| 2026-08-11 11:29:39 | 2677ms | 2 NS 0 A 1 MX | 🔒 Secure | View |
| 2026-07-18 07:47:39 | 713ms | 2 NS 0 A 1 MX | 🔒 Secure | View |
| 2026-07-17 03:27:07 | 1219ms | 2 NS 0 A 1 MX | 🔒 Secure | View |
| 2026-07-02 01:37:00 | 3547ms | 2 NS 0 A 1 MX | 🔒 Secure | View |
| 2026-07-02 01:29:09 | 1157ms | 2 NS 0 A 1 MX | 🔒 Secure | View |
| 2026-06-28 10:47:26 | 3235ms | 2 NS 0 A 1 MX | 🔒 Secure | View |
| 2026-06-26 10:14:10 | 618ms | 2 NS 0 A 1 MX | 🔒 Secure | View |
| 2026-06-16 15:20:53 | 450ms | 2 NS 0 A 1 MX | ⚠️ Bogus | View |
| 2026-06-16 15:20:07 | 565ms | 2 NS 0 A 1 MX | 🔒 Secure | View |