smtprelay.dk

📜 Historical scan 2026-06-17 16:16:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

smtprelay.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 19 June 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.5.39.153 is hosted by Bo data ApS (AS49974) in Denmark. Mail is handled by ispconfig.eero.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 199ms

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#

1 records 285ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
213.5.39.153	—	ispconfig.eero.dk	AS49974	Bo data ApS	213.5.32.0/21	🇩🇰 Denmark	Vildbjerg

📧 MX Records#

1 records 276ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	ispconfig.eero.dk	213.5.39.153	ispconfig.eero.dk	AS49974 Bo data ApS

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 584ms

TXT Record
v=spf1 a mx -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.smtprelay.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-11 06:50:52

www	213.5.39.153 (AS49974) (address records, no CNAME)
www vs bare domain	Same network smtprelay.dk: 213.5.39.153 (AS49974) www.smtprelay.dk: 213.5.39.153 (AS49974)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

522ms

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

🏷️ SOA#

255ms

Field	Value
Serial	2026032402
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 2026-10-14 13:52:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2014-06-19
Expires	2027-06-30 (254d)

🔗 Same registrant#

2 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
konnekto.dk	Simply.com A/S
tebit.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

199ms

285ms

276ms

AAAA

263ms

TXT

584ms

CAA

290ms

HTTPS

279ms

TLSA

341ms

SOA

255ms

MTA-STS

364ms

DNSSEC

522ms

SRV

0ms

Total

2710ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 16:21:00	624ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 16:06:50	594ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 07:24:47	965ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 03:14:15	784ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-21 20:06:35	4843ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-26 02:42:15	4655ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 17:53:00	582ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 16:16:27 shown	2710ms	2 NS 1 A 1 MX	🔒 Secure