| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 83.88.251.84 | 300s | 83-88-251-84-cable.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 83.88.192.0/18 | 🇩🇰 Denmark | Taastrup |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.0tx.dk | 135.181.98.40 2a01:4f9:c011:bc01::1 |
mail.0tx.dk mail.0tx.dk |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| 40 | 300s | pmg.domingo.dk | 2a01:4f8:c012:9adf::1 49.13.214.145 |
pmg.domingo.dk pmg.domingo.dk |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | sourceip.dk → 83.88.251.84 |
| 🔶 Autoconfig | sourceip.dk → 83.88.251.84 |
| TXT Record |
|---|
| v=spf1 include:_spf.0tx.dk -all |
| Policy | Record (sourceip.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.0tx.dk -all |
| Policy | Record (_dmarc.sourceip.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:e8d5ed3a0c8d4b11b62f70e87f42da20@dmarc-reports.cloudflare.net,mailto:dmarc@sourceip.dk |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.sourceip.dk | sourceip.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.0tx.dk | DANE-EE · SPKI · SHA-256 | CA0670673BBB301601491AE6821DB45B… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2411771155 |
| Primary NS (MNAME) | desiree.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-27 22:06:00 | 3025ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-10 23:47:29 | 3613ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-16 22:03:25 | 2919ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-03 14:59:26 | 1690ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-30 16:26:42 | 2011ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-25 13:26:15 | 1286ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-23 17:12:30 | 1299ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-17 11:39:38 | 1104ms | 2 NS 1 A 2 MX | 🔒 Secure | View |