| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 76.76.21.21 | 300s | — | AS16509 | Amazon.com, Inc. | 76.76.21.0/24 | 🇺🇸 United States | Walnut |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com include:_spf.resend.com ~all |
| Policy | Record (campusportalen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.simply.com include:_spf.resend.com ~all |
| Policy | Record (_dmarc.campusportalen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:rasmus@campusportalen.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| 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 | 2413510584 |
| Primary NS (MNAME) | hayes.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-31 12:31:48 | 10164ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-08-29 19:52:33 | 1324ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-08-09 12:25:51 | 1072ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-16 05:28:35 | 9886ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-19 13:56:09 | 987ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-16 19:06:02 | 702ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |