gnb-mail.dk DNS records

🖥️ Nameservers2 records 86ms

Nameserver	IP addresses	PTR	ASN / ISP
coco.ns.cloudflare.com	108.162.192.104 172.64.32.104 173.245.58.104 2606:4700:50::adf5:3a68 2803:f800:50::6ca2:c068 2a06:98c1:50::ac40:2068	coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sid.ns.cloudflare.com	108.162.193.143 172.64.33.143 173.245.59.143 2606:4700:58::adf5:3b8f 2803:f800:50::6ca2:c18f 2a06:98c1:50::ac40:218f	sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 94ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
75.119.145.21	120s	mail.gnb-mail.dk	AS51167	Contabo GmbH	75.119.128.0/19	🇫🇷 France	Lauterbourg

📧 MX Records1 records 87ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	120s	mail.gnb-mail.dk	2a02:c206:2099:6999::1 75.119.145.21	mail.gnb-mail.dk mail.gnb-mail.dk	AS51167 Contabo GmbH AS51167 Contabo GmbH

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	mail.gnb-mail.dk → 75.119.145.21
🔶 Autoconfig	mail.gnb-mail.dk → 75.119.145.21

🔷 AAAA Records (IPv6)1 records 81ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:c206:2099:6999::1	120s	mail.gnb-mail.dk	AS51167	Contabo GmbH	2a02:c204:0:0:0:0:0:0/30	🇫🇷 France	Lauterbourg

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records3 records 140ms

Service	Weight	Port	Target
_autodiscover._tcp	1	443	mail.gnb-mail.dk
_imap._tcp	1	143	mail.gnb-mail.dk
_imaps._tcp	1	993	mail.gnb-mail.dk

📝 TXT Records3 records 293ms

TXT Record
google-site-verification=FXqGh97aPt9ivvUJ6wWh7QZtHPG7uze63OL3f4GX6v0
google-site-verification=J4zS7wI1xehD6I1iWOY2Fyj8NsXrjHhAPn3iLZXGhdM
v=spf1 mx -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.gnb-mail.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:2dcbfac9b8d44ff8a531762370f53372@dmarc-reports.cloudflare.net

📬 MTA-STS167ms

Check	Result
Status	⚠️ Invalid
TXT record (_mta-sts)	✓ Found
HTTPS policy	✗ Missing / invalid
Policy ID	20251003132255
Policy MX	—

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC195ms

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

🏷️ SOA0ms

Field	Value
Serial	2413349027
Primary NS (MNAME)	coco.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

86ms

A

94ms

MX

87ms

AAAA

81ms

TXT

293ms

CAA

78ms

HTTPS

83ms

TLSA

714ms

SOA

0ms

MTA-STS

167ms

DNSSEC

195ms

SRV

140ms

Total

2010ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 12:34:28	2010ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 11:14:38	1008ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 03:48:18	1166ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 08:13:19	949ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 13:04:25	1139ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 09:23:51	758ms	2 NS 1 A 1 MX	🔒 Secure	View