gnb-mail.dk

📜 Historical scan 2026-06-24 13:04:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gnb-mail.dk is a .dk domain served by 2 nameservers (coco.ns.cloudflare.com, sid.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 75.119.145.21 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by mail.gnb-mail.dk. The zone is DNSSEC-signed and validates, 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#

2 records 69ms

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 Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
75.119.145.21	600s	mail.gnb-mail.dk	AS51167	Contabo GmbH	75.119.128.0/19	🇫🇷 France	Lauterbourg

📧 MX Records#

1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	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 32ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:c206:2099:6999::1	600s	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 Records#

3 records 86ms

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 Records#

3 records 156ms

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-STS#

91ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-15 06:35:01

www	Exists, no address
www vs bare domain	www does not resolve gnb-mail.dk: 159.195.249.93 2a0a:4cc0:60:2a79:a41c:10ff:febc:cb86 (AS197540) www.gnb-mail.dk: no address (all like this)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
dkim	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records 342ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.gnb-mail.dk	DANE-EE · SPKI · SHA-256	B8969D79FA155EC239BC9618B5DBAB35…

🔐 DNSSEC#

69ms

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

🏷️ SOA#

62ms

Field	Value
Serial	2407128219
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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

69ms

33ms

54ms

AAAA

32ms

TXT

156ms

CAA

47ms

HTTPS

100ms

TLSA

342ms

SOA

62ms

MTA-STS

91ms

DNSSEC

69ms

SRV

86ms

Total

1139ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 06:35:01	1063ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 17:36:16	661ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 23:29:04	893ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 02:52:26	1213ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-06 16:01:32	2956ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 12:34:28	2010ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-07 11:14:38	1008ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-22 03:48:18	1166ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-11 08:13:19	949ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 13:04:25 shown	1139ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 09:23:51	758ms	2 NS 1 A 1 MX	🔒 Secure