returmail.dk

📜 Historical scan 2026-06-22 14:32:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

returmail.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 23 February 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.215.246.71 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail.returmail.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 40ms

Nameserver	IP addresses	PTR	ASN / 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 Records#

1 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.215.246.71	3600s	—	AS3292	TDC Holding A/S	195.215.0.0/16	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 109ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.returmail.dk	94.231.109.0	director1.mf.curanet.dk	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	195.215.246.71
🔶 Autoconfig	195.215.246.71

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 212ms

TXT Record
v=spf1 include:cur.gecko.dk include:int.gecko.dk -all

✉️ SPF#

Policy	Record (returmail.dk)
-all (hard fail)	v=spf1 include:cur.gecko.dk include:int.gecko.dk -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 04:08:43

www	195.215.246.71 (AS3292) (address records, no CNAME)
www vs bare domain	Same network returmail.dk: 195.215.246.71 (AS3292) www.returmail.dk: 195.215.246.71 (AS3292)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

104ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

126ms

Field	Value
Serial	2021111701
Primary NS (MNAME)	ns1.123hotel.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-08 18:27:56

Field	Value
Registrar	CURANET A/S
Registered	2009-02-23
Expires	2027-02-28 (128d)

📋 WHOIS#

⏱️ Lookup Timing#

40ms

41ms

109ms

AAAA

31ms

TXT

212ms

CAA

38ms

HTTPS

113ms

TLSA

103ms

SOA

126ms

MTA-STS

42ms

DNSSEC

104ms

SRV

152ms

Total

621ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 22:39:37	483ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 14:32:47 shown	621ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 15:46:35	934ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 02:31:03	599ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 03:23:44	4611ms	2 NS 1 A 1 MX	🔒 Secure