postini.dk is a .dk domain served by 4 nameservers (ns1.google.com, ns2.google.com, ns3.google.com and 1 more). It was registered on 4 July 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.extremeonly.com, mx2.extremeonly.com and 2 more. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 100 | 3600s | mx1.extremeonly.com | 34.76.27.54 | 54.27.76.34.bc.googleusercontent.com | AS396982 Google LLC |
| 100 | 3600s | mx2.extremeonly.com | 34.76.27.54 | 54.27.76.34.bc.googleusercontent.com | AS396982 Google LLC |
| 100 | 3600s | mx3.extremeonly.com | 35.205.156.28 | 28.156.205.35.bc.googleusercontent.com | AS396982 Google LLC |
| 100 | 3600s | mx4.extremeonly.com | 35.205.156.28 | 28.156.205.35.bc.googleusercontent.com | AS396982 Google LLC |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves postini.dk: no address www.postini.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2012122000 |
| Primary NS (MNAME) | ns1.google.com |
| Responsible (RNAME) | postini-hostmaster@google.com |
| Refresh | 7200s |
| Retry | 3600s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | MarkMonitor Inc. |
| Registered | 2007-07-04 |
| Expires | 2027-07-31 (287d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 20:22:10 shown | 959ms | 4 NS 0 A 4 MX | 🔓 Insecure |
| 2026-09-25 15:49:53 | 832ms | 4 NS 0 A 4 MX | 🔓 Insecure |
| 2026-08-26 04:56:20 | 10349ms | 4 NS 0 A 4 MX | 🔓 Insecure |
| 2026-06-25 13:43:15 | 1472ms | 4 NS 0 A 4 MX | 🔓 Insecure |
| 2026-06-17 22:55:19 | 1157ms | 4 NS 0 A 4 MX | 🔓 Insecure |