mailon.dk

📜 Historical scan 2026-09-29 14:48:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mailon.dk is a .dk domain served by 4 nameservers (dns1.zipmedia.dk, dns2.zipmedia.dk, dns5.zipmedia.dk and 1 more). It was registered on 31 May 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.51.76.151 is hosted by Din Server Group ApS (AS215052) in Denmark. Mail is handled by mail1.zipmedia.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#

4 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.zipmedia.dk	185.136.96.77 2a06:fb00:1::1:77	dns1.cloudns.net dns1.cloudns.net	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
dns2.zipmedia.dk	185.136.97.77 2a06:fb00:1::2:77	dns2.cloudns.net dns2.cloudns.net	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
dns5.zipmedia.dk	185.136.98.77 2a06:fb00:1::3:77	dns5.cloudns.net dns5.cloudns.net	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
dns6.zipmedia.dk	185.136.99.77 2a06:fb00:1::4:77	dns6.cloudns.net dns6.cloudns.net	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd

🌍 A Records#

1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.76.151	60s	—	AS215052	Din Server Group ApS	185.51.76.0/24	🇩🇰 Denmark	Albertslund

📧 MX Records#

1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail1.zipmedia.dk	185.51.76.142 2a12:bec4:11d3:81fc::1	mail1.zipmedia.dk mail1.zipmedia.dk	AS215052 Din Server Group ApS AS215052 Din Server Group ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	185.51.76.151
🔶 Autoconfig	185.51.76.151

🔷 AAAA Records (IPv6)#

1 records 72ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a12:bec4:11d3:3068:185:51:76:151	3600s	—	AS215052	Din Server Group ApS	2a12:bec4:11d0:0:0:0:0:0/46	🇩🇰 Denmark	Albertslund

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 86ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	mail1.zipmedia.dk

📝 TXT Records#

1 records 259ms

TXT Record
v=spf1 ip4:185.51.76.142 a mx -all

✉️ SPF#

Policy	Record (mailon.dk)
-all (hard fail)	v=spf1 ip4:185.51.76.142 a mx -all

📨 DMARC#

Policy	Record (_dmarc.mailon.dk)
p=reject	v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:postmaster@zipmedia.dk;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

1 records 52ms

Flags	Tag	Value
128	issue	letsencrypt.org

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 22:04:28

www	185.51.76.151 2a12:bec4:11d3:3068:185:51:76:151 (AS215052) (address records, no CNAME)
www vs bare domain	Same network mailon.dk: 185.51.76.151 2a12:bec4:11d3:3068:185:51:76:151 (AS215052) www.mailon.dk: 185.51.76.151 2a12:bec4:11d3:3068:185:51:76:151 (AS215052)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 0 iterations · no salt · opt-out RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

66ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026091901
Primary NS (MNAME)	dns1.zipmedia.dk
Responsible (RNAME)	support@zipmedia.dk
Refresh	7200s
Retry	180s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-09 01:32:36

Field	Value
Registrar	Domeneshop AS
Registered	2006-05-31
Expires	2027-05-31 (225d)

📋 WHOIS#

⏱️ Lookup Timing#

44ms

42ms

51ms

AAAA

72ms

TXT

259ms

CAA

52ms

HTTPS

40ms

TLSA

498ms

SOA

0ms

MTA-STS

79ms

DNSSEC

66ms

SRV

86ms

Total

3836ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 22:04:28	7280ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-30 17:45:06	3523ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-29 14:48:56 shown	3836ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-24 03:38:58	1848ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-30 21:08:31	2910ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-26 18:07:25	5801ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-12 02:48:11	6251ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-23 07:21:27	1176ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-01 22:37:47	2358ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-30 07:17:04	10074ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-28 03:27:24	8813ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-23 00:04:40	1267ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-18 08:17:29	1105ms	4 NS 1 A 1 MX	🔒 Secure