rasmuskelbaek.dk
Last scanned: 2026-06-26 14:54:05  ·  1944ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   219ms
🌍 A Records1 records   255ms
📧 MX Records1 records   240ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover93.191.156.172
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   274ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com
📝 TXT Records2 records   426ms
TXT Record
v=spf1 include:_spf.simplero.com ~all
v=spf1 include:sendgrid.net ~all
✉️ SPF
⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)
PolicyRecord (rasmuskelbaek.dk)
~all (soft fail) v=spf1 include:_spf.simplero.com ~all
~all (soft fail) v=spf1 include:sendgrid.net ~all
📨 DMARC
PolicyRecord (_dmarc.rasmuskelbaek.dk)
p=none (monitor only) v=DMARC1; p=none; pct=100; rua=mailto:re+n44egm1z45w@dmarc.postmarkapp.com; sp=none; aspf=r;
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records
✗ No CAA records — any CA may issue certificates
🔗 TLSA / DANE2 records   731ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
🔐 DNSSEC346ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA217ms
FieldValue
Serial2025072004
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
219ms
A
255ms
MX
240ms
AAAA
253ms
TXT
426ms
CAA
228ms
HTTPS
208ms
TLSA
731ms
SOA
217ms
MTA-STS
276ms
DNSSEC
346ms
SRV
274ms
Total
1944ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-26 14:54:05 1944ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 02:23:03 1381ms 4 NS 1 A 1 MX 🔓 Insecure View
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