posteo.dk

📜 Historical scan 2026-10-12 21:04:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

posteo.dk is a .dk domain served by 5 nameservers (emea.excedodns.eu, nordic.excedodns.net, ns01.posteo-dns.de and 2 more). It was registered on 25 March 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.67.36.169 is hosted by INTERNET AG Global Network (AS8495) in Germany. Mail is handled by mx01.posteo.de, mx03.posteo.de and 1 more. The zone is not DNSSEC-signed, 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#

5 records 35ms

Nameserver	IP addresses	PTR	ASN / ISP
emea.excedodns.eu	194.58.192.48 2a01:3f1:48::53	emea.excedodns.eu emea.excedodns.eu	AS8674 Netnod AB AS8674 Netnod AB
nordic.excedodns.net	162.219.55.130 2620:10a:80ec::42	nordic.excedodns.net nordic.excedodns.net	AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I
ns01.posteo-dns.de	185.67.36.40 2a05:bc0:1000::40:1	ns01.posteo-dns.de ns01.posteo-dns.de	AS8495 INTERNET AG Global Network AS8495 INTERNET AG Global Network
ns02.posteo-dns.de	185.67.36.42 2a05:bc0:1000::42:1	— —	AS8495 INTERNET AG Global Network AS8495 INTERNET AG Global Network
sto.excedodns.se	185.42.137.101 2a01:3f0:400::48	sto.excedodns.se sto.excedodns.se	AS8674 Netnod AB AS8674 Netnod AB

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.67.36.169	1800s	—	AS8495	INTERNET AG Global Network	185.67.36.0/23	🇩🇪 Germany	—

📧 MX Records#

3 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	1800s	mx01.posteo.de	185.67.36.61 185.67.36.62	mx01.posteo.de mx01.posteo.de	AS8495 INTERNET AG Global Network AS8495 INTERNET AG Global Network
10	1800s	mx03.posteo.de	185.67.36.63 185.67.36.70	mx03.posteo.de mx03.posteo.de	AS8495 INTERNET AG Global Network AS8495 INTERNET AG Global Network
10	1800s	mx04.posteo.de	185.67.36.64 185.67.36.71	mx04.posteo.de mx04.posteo.de	AS8495 INTERNET AG Global Network AS8495 INTERNET AG Global Network

🔷 AAAA Records (IPv6)#

1 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a05:bc0:1000::169:1	1800s	—	AS8495	INTERNET AG Global Network	2a05:bc0:1000:0:0:0:0:0/47	🇩🇪 Germany	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 243ms

TXT Record
84944eaf2fa3496cc8b73383c39b0046330432b19e3400ce8c21052b09194db
v=spf1 redirect=posteo.de

✉️ SPF#

Policy	Record (posteo.dk)
redirect=posteo.de	v=spf1 redirect=posteo.de

📨 DMARC#

Policy	Record (_dmarc.posteo.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=reject; adkim=s; aspf=s

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

6 records 26ms

Flags	Tag	Value
0	iodef	mailto:hostmaster@posteo.de
0	issue	certum.pl
0	issue	d-trust.net
0	issue	geotrust.com
0	issuewild	d-trust.net
0	issuewild	geotrust.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-17 01:14:56

www	185.67.36.169 2a05:bc0:1000::169:1 (AS8495) (address records, no CNAME)
www vs bare domain	Same network posteo.dk: 185.67.36.169 2a05:bc0:1000::169:1 (AS8495) www.posteo.dk: 185.67.36.169 2a05:bc0:1000::169:1 (AS8495)
Wildcard	No
Denial of existence	NSEC3 · 20 iterations · 8-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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

18 records 444ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx01.posteo.de	DANE-EE · SPKI · SHA-256	A73A9ADB16BD5A4131DF79C446438E13…
SMTP _25._tcp.mx01.posteo.de	DANE-EE · SPKI · SHA-256	B2305F6446E9CFAE4F00F0ACC02533EB…
SMTP _25._tcp.mx01.posteo.de	DANE-EE · SPKI · SHA-256	0BECB1AF349FC7C52D47BD380303BFAB…
SMTP _25._tcp.mx01.posteo.de	DANE-EE · SPKI · SHA-256	13815B2C03F7BD63C54869706428442E…
SMTP _25._tcp.mx01.posteo.de	DANE-EE · SPKI · SHA-256	2A2413F46C23290866A3FB9C1658A404…
SMTP _25._tcp.mx01.posteo.de	DANE-EE · SPKI · SHA-256	2AD38769DC6A92ED98FB7A45514C0A74…
SMTP _25._tcp.mx03.posteo.de	DANE-EE · SPKI · SHA-256	13815B2C03F7BD63C54869706428442E…
SMTP _25._tcp.mx03.posteo.de	DANE-EE · SPKI · SHA-256	2AD38769DC6A92ED98FB7A45514C0A74…
SMTP _25._tcp.mx03.posteo.de	DANE-EE · SPKI · SHA-256	2A2413F46C23290866A3FB9C1658A404…
SMTP _25._tcp.mx03.posteo.de	DANE-EE · SPKI · SHA-256	0BECB1AF349FC7C52D47BD380303BFAB…
SMTP _25._tcp.mx03.posteo.de	DANE-EE · SPKI · SHA-256	B2305F6446E9CFAE4F00F0ACC02533EB…
SMTP _25._tcp.mx03.posteo.de	DANE-EE · SPKI · SHA-256	A73A9ADB16BD5A4131DF79C446438E13…
SMTP _25._tcp.mx04.posteo.de	DANE-EE · SPKI · SHA-256	0BECB1AF349FC7C52D47BD380303BFAB…
SMTP _25._tcp.mx04.posteo.de	DANE-EE · SPKI · SHA-256	13815B2C03F7BD63C54869706428442E…
SMTP _25._tcp.mx04.posteo.de	DANE-EE · SPKI · SHA-256	2A2413F46C23290866A3FB9C1658A404…
SMTP _25._tcp.mx04.posteo.de	DANE-EE · SPKI · SHA-256	2AD38769DC6A92ED98FB7A45514C0A74…
SMTP _25._tcp.mx04.posteo.de	DANE-EE · SPKI · SHA-256	A73A9ADB16BD5A4131DF79C446438E13…
SMTP _25._tcp.mx04.posteo.de	DANE-EE · SPKI · SHA-256	B2305F6446E9CFAE4F00F0ACC02533EB…

🔐 DNSSEC#

124ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

45ms

Field	Value
Serial	1791766882
Primary NS (MNAME)	ns01.posteo-dns.de
Responsible (RNAME)	hostmaster@posteo.de
Refresh	3600s
Retry	900s
Expire	3542400s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-14 22:49:09

Field	Value
Registrar	INWX GmbH
Registered	2013-03-25
Expires	2027-03-31 (165d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

35ms

33ms

39ms

AAAA

46ms

TXT

243ms

CAA

26ms

HTTPS

39ms

TLSA

444ms

SOA

45ms

MTA-STS

102ms

DNSSEC

124ms

SRV

113ms

Total

4856ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 01:14:56	765ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-16 01:00:45	1052ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-14 22:26:32	4500ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-13 21:22:12	1332ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-12 21:04:46 shown	4856ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-11 20:18:21	7254ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-10 19:19:59	732ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-09 18:40:17	1044ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-08 17:13:56	4465ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-07 17:07:18	2236ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-06 16:58:45	714ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-05 16:35:06	5087ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-04 16:29:24	888ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-03 16:26:13	3514ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-02 16:23:15	1968ms	5 NS 1 A 3 MX	🔓 Insecure
2026-10-01 16:18:50	4384ms	5 NS 1 A 3 MX	🔓 Insecure
2026-09-30 16:11:06	2835ms	5 NS 1 A 3 MX	🔓 Insecure
2026-09-29 15:52:37	3360ms	5 NS 1 A 3 MX	🔓 Insecure
2026-09-29 02:17:38	5090ms	5 NS 1 A 3 MX	🔓 Insecure
2026-09-28 01:52:35	3785ms	5 NS 1 A 3 MX	🔓 Insecure
2026-09-27 01:43:12	4120ms	5 NS 1 A 3 MX	🔓 Insecure
2026-09-26 01:33:53	3857ms	5 NS 1 A 3 MX	🔓 Insecure
2026-09-25 05:36:33	4107ms	5 NS 1 A 3 MX	🔓 Insecure
2026-09-24 05:26:04	4491ms	5 NS 1 A 3 MX	🔓 Insecure
2026-09-18 00:46:43	4330ms	5 NS 1 A 3 MX	🔓 Insecure