smtps.dk

📜 Historical scan 2026-09-29 16:36:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

smtps.dk is a .dk domain served by 3 nameservers (castor.xs4none.net, iris.xs4none.net, sinon.xs4none.net). It was registered on 27 December 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.150.133.221 is hosted by Hiper A/S (AS203953) in Denmark. Mail is handled by relay.return-path.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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#

3 records 77ms

Nameserver	IP addresses	PTR	ASN / ISP
castor.xs4none.net	172.104.156.177 2a01:7e01:e001:9f2::	relay.return-path.dk relay.return-path.dk	AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud
iris.xs4none.net	172.239.15.24 2600:3c1a:e001:23::	relay.return-path.dk relay.return-path.dk	AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud
sinon.xs4none.net	172.237.121.202 2600:3c13:e001:da::	relay.return-path.dk relay.return-path.dk	AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud

🌍 A Records#

1 records 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.150.133.221	3600s	return-path.dk	AS203953	Hiper A/S	89.150.128.0/18	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
20	3600s	relay.return-path.dk	172.104.156.177 172.237.121.202 172.239.15.24 2600:3c13:e001:da:: 2600:3c1a:e001:23:: 2a01:7e01:e001:9f2::	relay.return-path.dk relay.return-path.dk relay.return-path.dk relay.return-path.dk relay.return-path.dk relay.return-path.dk	AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	89.150.133.221
🔶 Autoconfig	89.150.133.221

🔷 AAAA Records (IPv6)#

1 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a05:f6c7:7613:0:11:32ff:fe25:7642	3600s	—	AS203953	Hiper A/S	2a05:f6c0:0:0:0:0:0:0/29	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 303ms

TXT Record
v=spf1 mx -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.smtps.dk)
p=reject	v=DMARC1; p=reject; sp=reject; psd=n; rua=mailto:dmarcreports@return-path.dk; adkim=s; aspf=s

📬 MTA-STS#

265ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	20260506
max_age	604800s
Policy MX	hermes.return-path.dk, relay.return-path.dk

📈 TLSRPT#

Status	Report address (rua)
✓ Enabled	mailto:tlsreports@return-path.dk

📜 CAA Records#

3 records 81ms

Flags	Tag	Value
0	iodef	mailto:hostmaster@return-path.dk
0	issue	letsencrypt.org
0	issuewild	;

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-15 06:17:21

www CNAME	smtps.dk (all on smtps.dk) → 89.150.133.221 2a05:f6c7:7613:0:11:32ff:fe25:7642 (AS203953)
www vs bare domain	Same network smtps.dk: 89.150.133.221 2a05:f6c7:7613:0:11:32ff:fe25:7642 (AS203953) www.smtps.dk: 89.150.133.221 2a05:f6c7:7613:0:11:32ff:fe25:7642 (AS203953)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

2 records 1416ms

Service / Owner	Type	Cert association
SMTP _25._tcp.relay.return-path.dk	DANE-TA · SPKI · SHA-256	B0292AE545978E0FBB98ABBD94C86160…
SMTP _25._tcp.relay.return-path.dk	DANE-EE · SPKI · SHA-256	CAED696B0D29E864AB79B0686AB0D121…

🔐 DNSSEC#

151ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026091617
Primary NS (MNAME)	hermes.return-path.dk
Responsible (RNAME)	hostmaster@return-path.dk
Refresh	3600s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-13 04:26:38

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-12-27
Expires	2026-12-26 (70d)

🔗 Same registrant#

10 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
cirkusprinsessen.dk	Simply.com A/S
dotm.dk	Punktum dk A/S (direct)
dr3v3s.dk	Punktum dk A/S (direct)
dreves.dk	Punktum dk A/S (direct)
hammermolle.dk	Simply.com A/S
infiniteme.dk	Punktum dk A/S (direct)
praxis-flow.dk	Punktum dk A/S (direct)
slashroot.dk	Punktum dk A/S (direct)
therealm.dk	Simply.com A/S
tickler.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

77ms

53ms

54ms

AAAA

56ms

TXT

303ms

CAA

81ms

HTTPS

75ms

TLSA

1416ms

SOA

0ms

MTA-STS

265ms

DNSSEC

151ms

SRV

142ms

Total

2306ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 06:17:21	2181ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-14 04:52:55	2579ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-13 04:08:51	1261ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-10 21:25:23	4046ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-09 19:56:53	1444ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-07 18:26:13	1991ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-06 18:20:37	2537ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-04 17:14:05	3116ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 17:09:01	1271ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 17:04:51	5340ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-30 16:46:25	2552ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 16:36:51 shown	2306ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 16:20:32	1223ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-26 16:03:33	3208ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-24 15:47:55	1823ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-23 15:11:38	1348ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-17 01:34:50	1524ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-10 23:18:40	1897ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-03 23:40:45	1257ms	5 NS 1 A 2 MX	🔒 Secure
2026-08-30 09:55:53	4321ms	5 NS 1 A 2 MX	🔒 Secure
2026-08-29 02:04:12	1138ms	5 NS 1 A 2 MX	🔒 Secure
2026-08-27 01:04:03	1900ms	5 NS 1 A 2 MX	🔒 Secure
2026-08-26 00:39:21	1365ms	5 NS 1 A 2 MX	🔒 Secure
2026-08-22 17:06:54	6026ms	5 NS 1 A 2 MX	🔒 Secure
2026-08-20 16:49:53	2607ms	5 NS 1 A 2 MX	🔒 Secure