email4u.dk

📜 Historical scan 2026-09-16 10:36:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

email4u.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 23 May 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.one.com and 2 more. 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 83ms

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#

4 records 125ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.mailpod16-cph3.g1i.one.com	5.249.232.33	mx1.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx2.mailpod16-cph3.g1i.one.com	5.249.232.34	mx2.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx3.mailpod16-cph3.g1i.one.com	5.249.232.35	mx3.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx4.mailpod16-cph3.g1i.one.com	5.249.232.36	mx4.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	www.familie-jensen.dk → 80.209.110.53
🔶 Autoconfig	www.familie-jensen.dk → 80.209.110.53

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 321ms

TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (email4u.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.email4u.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:hostmaster@email4u.dk; ruf=mailto:hostmaster@email4u.dk

📬 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 2026-10-17 10:54:33

www	Exists, no address
www vs bare domain	Neither resolves email4u.dk: no address www.email4u.dk: no address
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records 86ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	2362DFAC1BB9F66402E0636BDEF478E5…
SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	2362DFAC1BB9F66402E0636BDEF478E5…
SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	2362DFAC1BB9F66402E0636BDEF478E5…
SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	2362DFAC1BB9F66402E0636BDEF478E5…

🔐 DNSSEC#

154ms

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	2026091501
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 2026-10-17 11:14:17

Field	Value
Registrar	ONE.COM A/S
Registered	2003-05-23
Expires	2027-05-31 (221d)

🔗 Same registrant#

3 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
cslab.dk	ONE.COM A/S
email2u.dk	ONE.COM A/S
familie-jensen.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

83ms

111ms

125ms

AAAA

337ms

TXT

321ms

CAA

552ms

HTTPS

304ms

TLSA

86ms

SOA

0ms

MTA-STS

210ms

DNSSEC

154ms

SRV

469ms

Total

1179ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 10:54:33	566ms	2 NS 0 A 4 MX	🔒 Secure
2026-09-30 14:16:11	776ms	2 NS 0 A 4 MX	🔒 Secure
2026-09-27 17:27:04	708ms	2 NS 0 A 4 MX	🔒 Secure
2026-09-21 09:12:30	868ms	2 NS 0 A 4 MX	🔒 Secure
2026-09-16 10:36:59 shown	1179ms	2 NS 0 A 4 MX	🔒 Secure
2026-08-28 04:04:05	674ms	2 NS 0 A 4 MX	🔒 Secure
2026-08-27 00:10:16	857ms	2 NS 0 A 4 MX	🔒 Secure
2026-08-16 03:59:32	9049ms	2 NS 0 A 4 MX	🔒 Secure
2026-07-22 18:36:14	1101ms	2 NS 0 A 4 MX	🔒 Secure
2026-07-17 08:48:20	1045ms	2 NS 0 A 4 MX	🔒 Secure
2026-07-02 00:32:55	769ms	2 NS 0 A 4 MX	🔒 Secure
2026-06-28 23:13:01	642ms	2 NS 0 A 4 MX	🔒 Secure
2026-06-28 18:03:32	788ms	2 NS 0 A 4 MX	🔒 Secure
2026-06-17 07:10:16	689ms	2 NS 0 A 4 MX	🔒 Secure