mailtune.dk

📜 Historical scan 2026-09-16 15:59:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mailtune.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 February 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mailgw.sdcloud.dk, mx.c5x.dk. The zone is DNSSEC-signed and validates, publishes a 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

🌍

No A records found

📧 MX Records#

2 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	mailgw.sdcloud.dk	135.125.131.104	vps-da909c67.vps.ovh.net	AS16276 OVH SAS
99	3600s	mx.c5x.dk	188.120.78.171	—	AS31027 GlobalConnect A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 153ms

TXT Record
v=spf1 mx -all

✉️ SPF#

Policy	Record (mailtune.dk)
-all (hard fail)	v=spf1 mx -all

📨 DMARC#

Policy	Record (_dmarc.mailtune.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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 2026-10-13 04:36:34

www	46.30.211.38 (AS51468) (address records, no CNAME)
www vs bare domain	Only www resolves mailtune.dk: no address www.mailtune.dk: 46.30.211.38 (AS51468) (all like this)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

79ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2026032401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-12 03:29:52

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-02-04
Expires	2027-02-28 (134d)

🔗 Same registrant#

4 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
c5experten.dk	Punktum dk A/S (direct)
elkaerparken.dk	Punktum dk A/S (direct)
sdcloud.dk	Punktum dk A/S (direct)
uninest.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

40ms

39ms

AAAA

38ms

TXT

153ms

CAA

37ms

HTTPS

38ms

TLSA

105ms

SOA

0ms

MTA-STS

59ms

DNSSEC

79ms

SRV

52ms

Total

568ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 04:36:34	600ms	2 NS 0 A 2 MX	🔒 Secure
2026-10-12 03:16:33	2141ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-23 16:55:30	1430ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-16 15:59:10 shown	568ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-13 15:41:20	6889ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-26 21:59:07	24888ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-02 09:59:52	1410ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-19 22:53:58	1881ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-17 23:47:16	850ms	2 NS 0 A 2 MX	🔒 Secure