plainmail.dk DNS records

🖥️ Nameservers3 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.105.164.181	600s	static.181.164.105.178.clients.your-server.de	AS24940	Hetzner Online GmbH	178.104.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records6 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mxa.eu.mailgun.org	34.111.130.244	244.130.111.34.bc.googleusercontent.com	AS396982 Google LLC
10	600s	mxb.eu.mailgun.org	34.111.130.244	244.130.111.34.bc.googleusercontent.com	AS396982 Google LLC
10	600s	mxext1.mailbox.org	2001:67c:2050:104:0:1:25:1 80.241.60.212	mx1.mailbox.org mx1.mailbox.org	AS199118 Heinlein-Support GmbH AS199118 Heinlein-Support GmbH
10	600s	mxext2.mailbox.org	2001:67c:2050:104:0:2:25:1 80.241.60.215	mx2.mailbox.org mx2.mailbox.org	AS199118 Heinlein-Support GmbH AS199118 Heinlein-Support GmbH
10	600s	mxext3.mailbox.org	2001:67c:2050:104:0:3:25:1 80.241.60.216	mx3.mailbox.org mx3.mailbox.org	AS199118 Heinlein-Support GmbH AS199118 Heinlein-Support GmbH
10	600s	mxext4.mailbox.org	2001:67c:2050:104:0:4:25:1 80.241.60.217	mx4.mailbox.org mx4.mailbox.org	AS199118 Heinlein-Support GmbH AS199118 Heinlein-Support GmbH

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 62ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records1 records 137ms

TXT Record
v=spf1 include:spf.simply.com include:mailbox.org include:mailgun.org ~all

✉️ SPF

Policy	Record (plainmail.dk)
~all (soft fail)	v=spf1 include:spf.simply.com include:mailbox.org include:mailgun.org ~all

📨 DMARC

Policy	Record (_dmarc.plainmail.dk)
p=reject	v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:ed331023@dmarc.mailgun.org,mailto:x5omjtprjve@inbox.ondmarc.com,mailto:dmarc@robot.simply.com; ruf=mailto:ed331023@dmarc.mailgun.org,mailto:x5omjtprjve@inbox.ondmarc.com,mailto:dmarc@robot.simply.com;

📬 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

🔗 TLSA / DANE12 records 314ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext2.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…
SMTP _25._tcp.mxext2.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext2.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext4.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext4.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext4.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…

🔐 DNSSEC89ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080800
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

31ms

A

29ms

MX

47ms

AAAA

35ms

TXT

137ms

CAA

39ms

HTTPS

36ms

TLSA

314ms

SOA

0ms

MTA-STS

66ms

DNSSEC

89ms

SRV

62ms

Total

2211ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 18:28:25	2211ms	3 NS 1 A 6 MX	🔒 Secure	View
2026-08-09 11:43:58	1771ms	3 NS 1 A 6 MX	🔒 Secure	View
2026-07-08 11:15:01	3661ms	3 NS 1 A 6 MX	🔒 Secure	View
2026-07-05 22:23:26	971ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-04 15:12:22	1380ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-06-23 20:29:51	1057ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-06-21 10:02:19	1335ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-06-19 08:38:17	1205ms	3 NS 1 A 3 MX	🔒 Secure	View