| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.18.106 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.181.152 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.stackmail.com | 185.151.28.67 | mx.stackmail.com | AS48254 20i Limited |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.181.152 |
| 🔶 Autoconfig | 104.21.18.106 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:b598 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::6815:126a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.18.106,172.67.181.152 ech=AEX+DQBBQAAgACAhq8MYJMfjpgSsxvv//L5jXej4iEAZ9ZgyZ139ucYOYwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:b598,2606:4700:3034::6815:126a |
| TXT Record |
|---|
| v=spf1 include:spf.stackmail.com a mx -all |
| Policy | Record (byggeskyen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.stackmail.com a mx -all |
| 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 | 2411180573 |
| Primary NS (MNAME) | boyd.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-03 17:44:35 | 1186ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-11 11:08:21 | 1167ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-01 05:41:21 | 1134ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-23 14:01:04 | 3337ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-21 14:33:57 | 1131ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-16 18:15:50 | 2467ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |