surel.dk
Last scanned: 2026-06-25 18:04:38  ·  530ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   35ms
NameserverIP addressesPTRASN / ISP
ns1.curanet.dk 185.25.141.12
2a02:2339:4006:108::123		 ns1.curanet.dk
ns1.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.curanet.dk 2a02:2339:1:10f::123:123
91.197.248.75		 ns2.curanet.dk
ns2.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
🌍 A Records1 records   31ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.41.45 3600s linux15.curanet.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —
📧 MX Records2 records   39ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.surel.dk 185.21.42.13 director1.mf.curanet.dk AS48854 team.blue Denmark A/S
20 3600s backup-mx.zitcom.dk 46.36.212.34
46.36.212.36
46.36.212.37
46.36.212.38
89.188.78.64
89.188.78.65
89.188.78.66
94.231.106.12		 node4.spamfilter.io
node8.spamfilter.io
node6.spamfilter.io
node7.spamfilter.io
node3.spamfilter.io
node9.spamfilter.io
node10.spamfilter.io
node2.spamfilter.io		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover185.21.41.45
🔶 Autoconfig185.21.41.45
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   105ms
TXT Record
facebook-domain-verification=my801althjdu4vw1fhvbp2d2ov9fi8
v=spf1 a include:spf.curanet.dk ~all
✉️ SPF
PolicyRecord (surel.dk)
~all (soft fail) v=spf1 a include:spf.curanet.dk ~all
📨 DMARC
PolicyRecord (_dmarc.surel.dk)
p=none (monitor only) v=DMARC1; p=none
📬 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 / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC96ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA33ms
FieldValue
Serial2025051501
Primary NS (MNAME)ns1.curanet.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
35ms
A
31ms
MX
39ms
AAAA
31ms
TXT
105ms
CAA
30ms
HTTPS
40ms
TLSA
42ms
SOA
33ms
MTA-STS
45ms
DNSSEC
96ms
SRV
42ms
Total
530ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-25 18:04:38 530ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-20 15:50:20 1015ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 22:36:37 885ms 2 NS 1 A 2 MX 🔒 Secure View
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