mtsec.dk DNS records

🖥️ Nameservers2 records 74ms

Nameserver	IP addresses	PTR	ASN / ISP
pdns03.domaincontrol.com	2603:5:21f0::33 97.74.111.51	pdns03.domaincontrol.com pdns03.domaincontrol.com	AS44273 Host Europe GmbH AS44273 Host Europe GmbH
pdns04.domaincontrol.com	173.201.79.51 2603:5:22f0::33	pdns04.domaincontrol.com pdns04.domaincontrol.com	AS44273 Host Europe GmbH AS44273 Host Europe GmbH

🌍 A Records4 records 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.185.159.144	600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	New York
198.185.159.145	600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	—
198.49.23.144	600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—
198.49.23.145	600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—

📧 MX Records1 records 82ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mtsec-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::c 2a01:111:f403:ca09::2 2a01:111:f403:ca09::6 52.101.68.0 52.101.68.27 52.101.68.8 52.101.73.6	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.99.204.216

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 243ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 463ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all
v=verifydomain MS=3515863

✉️ SPF

Policy	Record (mtsec.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.mtsec.dk)
p=reject	v=DMARC1; p=reject; pct=100; rua=mailto:mt@mtsec.dk; ruf=mailto:mt@mtsec.dk; sp=reject

📬 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)

🔐 DNSSEC145ms

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

🏷️ SOA75ms

Field	Value
Serial	2024012402
Primary NS (MNAME)	pdns03.domaincontrol.com
Responsible (RNAME)	dns@jomax.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

74ms

A

61ms

MX

82ms

AAAA

73ms

TXT

463ms

CAA

65ms

HTTPS

75ms

TLSA

197ms

SOA

75ms

MTA-STS

78ms

DNSSEC

145ms

SRV

243ms

Total

1075ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-20 05:17:20	1075ms	2 NS 4 A 1 MX	🔓 Insecure	View
2026-06-17 15:28:27	2387ms	2 NS 4 A 1 MX	🔓 Insecure	View