rb-mail.dk DNS records

🖥️ Nameservers2 records 86ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.jth.net	212.237.178.27 2a06:4005:8003::2	rb-mail.dk mail6.jth.net	AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S
ns4.jth.net	2a06:4004:b026::1 87.104.241.106	jylland.jth.net jylland.jth.net	AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S

🌍 A Records1 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.237.178.27	300s	27.27-32.178.237.212.in-addr.arpa antennelauget-vk.dk domname.eu domregistry.eu jth.net kirsebaerhaven4000.dk mail.jth.net ns1.jth.net rb-mail.dk smsnu.dk	AS204151	EWII Bredbaand A/S	212.237.176.0/21	🇩🇰 Denmark	Frederikssund

📧 MX Records2 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mail.jth.net	212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 2a06:4005:8003::2 2a06:4005:8003::2 2a06:4005:8003::2 2a06:4005:8003::2 2a06:4005:8003::2	smsnu.dk ns1.jth.net mail.jth.net domregistry.eu rb-mail.dk kirsebaerhaven4000.dk jth.net antennelauget-vk.dk domname.eu 27.27-32.178.237.212.in-addr.arpa vennely.jth.net mail.jth.net ns1.jth.net mail6.jth.net jth.net	AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S
11	86400s	mail6.jth.net	212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 212.237.178.27 2a06:4005:8003::2 2a06:4005:8003::2 2a06:4005:8003::2 2a06:4005:8003::2 2a06:4005:8003::2	27.27-32.178.237.212.in-addr.arpa domname.eu antennelauget-vk.dk jth.net kirsebaerhaven4000.dk rb-mail.dk domregistry.eu mail.jth.net ns1.jth.net smsnu.dk vennely.jth.net jth.net mail6.jth.net ns1.jth.net mail.jth.net	AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	212.237.178.27
🔶 Autoconfig	212.237.178.27

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 723ms

TXT Record
v=spf1 mx a ip4:185.107.14.0/24 ip4:212.112.154.133 ~all

✉️ SPF

Policy	Record (rb-mail.dk)
~all (soft fail)	v=spf1 mx a ip4:185.107.14.0/24 ip4:212.112.154.133 ~all

📨 DMARC

Policy	Record (_dmarc.rb-mail.dk)
p=quarantine	v=DMARC1; p=quarantine;pct=100; ri=86400

📬 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 / DANE2 records 101ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.jth.net	DANE-EE · SPKI · SHA-256	3D47D6201D951BB28EA8D9E0DE8FB2E9…
SMTP _25._tcp.mail6.jth.net	DANE-EE · SPKI · SHA-256	3D47D6201D951BB28EA8D9E0DE8FB2E9…

🔐 DNSSEC9095ms

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

🏷️ SOA0ms

Field	Value
Serial	2019050118
Primary NS (MNAME)	ns1.jth.net
Responsible (RNAME)	hostmaster@jth.net
Refresh	86400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	1s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

86ms

A

41ms

MX

37ms

AAAA

54ms

TXT

723ms

CAA

71ms

HTTPS

74ms

TLSA

101ms

SOA

0ms

MTA-STS

136ms

DNSSEC

9095ms

SRV

273ms

Total

9859ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 20:44:24	9859ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-07-03 00:40:19	2791ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-06-23 11:33:53	1205ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-06-22 18:38:46	3410ms	2 NS 1 A 2 MX	❓ Unknown	View
2026-06-22 05:19:19	1171ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 01:58:54	1146ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-06-18 08:28:40	5180ms	2 NS 1 A 2 MX	🔓 Insecure	View