posteo.dk DNS records

🖥️ Nameservers5 records 30ms

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 Records1 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 Records3 records 37ms

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 35ms

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 Records2 records 178ms

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

✉️ SPF

Policy	Record (posteo.dk)
no all — incomplete SPF	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 Records6 records 42ms

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

🔗 TLSA / DANE15 records 821ms

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

🔐 DNSSEC110ms

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

🏷️ SOA0ms

Field	Value
Serial	1788138084
Primary NS (MNAME)	ns01.posteo-dns.de
Responsible (RNAME)	hostmaster@posteo.de
Refresh	3600s
Retry	900s
Expire	3542400s
Minimum (neg-cache TTL)	3600s

📋 RegistrationWHOIS fetched 2026-08-29 15:12:14

Field	Value
Registrar	INWX GmbH
Registered	2013-03-25
Expires	2027-03-31 (210d)

📋 WHOIS

⏱️ Lookup Timing

NS

30ms

A

33ms

MX

37ms

AAAA

35ms

TXT

178ms

CAA

42ms

HTTPS

35ms

TLSA

821ms

SOA

0ms

MTA-STS

60ms

DNSSEC

110ms

SRV

65ms

Total

4088ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 22:12:25	4088ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-30 16:11:52	4817ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-29 15:06:04	5648ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-27 23:13:03	12730ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-27 22:56:36	3515ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-26 21:22:31	2984ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-24 16:25:40	2205ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-23 07:03:24	7523ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-22 06:54:41	10283ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-21 06:27:31	12545ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-20 06:03:46	12678ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-19 03:49:07	13156ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-17 18:49:44	8150ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-16 07:53:37	6179ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-14 16:56:27	8434ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-13 14:13:03	7076ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-12 06:33:49	5245ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-08 19:46:20	1906ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-06 13:49:40	9900ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-01 12:45:23	9808ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-31 03:33:12	17501ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-27 21:33:22	17739ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-26 21:16:34	12945ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-25 20:59:40	6005ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-24 20:39:56	2440ms	5 NS 1 A 3 MX	🔓 Insecure	View