postbyen.dk DNS records

🖥️ Nameservers5 records 66ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.brandshelter.com	193.227.117.9 2a04:2b00:14cc::9	ns1.brandshelter.com —	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns2.brandshelter.de	194.50.187.11 2a04:2b00:14dd::11	ns2.brandshelter.de ns11.j.centralnic-dns.com	AS207021 ipcom GmbH AS207021 ipcom GmbH
ns3.brandshelter.info	194.0.182.12 2a04:2b00:14ee::12	ns3.brandshelter.info ns12.k.centralnic-dns.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns4.brandshelter.net	193.227.117.10 2a04:2b00:14cc::10	ns4.brandshelter.net ns10.i.centralnic-dns.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns5.brandshelter.us	194.50.187.14 2a04:2b00:14dd::14	ns5.brandshelter.us ns14.j.centralnic-dns.com	AS207021 ipcom GmbH AS207021 ipcom GmbH

🌍 A Records1 records 67ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.106.67	600s	linux207.curanet.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	postbyen-dk.mail.protection.outlook.com	2a01:111:f403:c967:: 2a01:111:f403:c967::2 2a01:111:f403:c967::4 2a01:111:f403:c967::6 52.101.209.2 52.101.209.4 52.101.209.6 52.101.209.74	mail-cpcp307cu00400.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpcp307cu00402.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 286ms

TXT Record
google-site-verification=ykuE1p4dTnZHksSP619Ej3JjXqZXI-8yAm7FhQPlWtc
MS=ms61019530
v=spf1 a mx include:spf.protection.outlook.com include:spf.curanet.dk include:spf.mailjet.com -all

✉️ SPF

Policy	Record (postbyen.dk)
-all (hard fail)	v=spf1 a mx include:spf.protection.outlook.com include:spf.curanet.dk include:spf.mailjet.com -all

📨 DMARC

Policy	Record (_dmarc.postbyen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:mnehokxg@ag.eu.dmarcadvisor.com; adkim=s; aspf=s;

📬 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 / DANE

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

🔐 DNSSEC9084ms

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	2026032700
Primary NS (MNAME)	ns1.brandshelter.com
Responsible (RNAME)	tech@brandshelter.com
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

66ms

A

67ms

MX

52ms

AAAA

86ms

TXT

286ms

CAA

58ms

HTTPS

60ms

TLSA

602ms

SOA

0ms

MTA-STS

92ms

DNSSEC

9084ms

SRV

111ms

Total

10400ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 03:31:50	10400ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-01 13:04:08	1458ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 23:30:50	1107ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-18 03:52:19	1261ms	5 NS 1 A 1 MX	🔓 Insecure	View