union.dk DNS records

🖥️ Nameservers2 records 69ms

Nameserver	IP addresses	PTR	ASN / ISP
udns1.cscdns.net	2001:502:f3ff::201 204.74.66.1	udns1.cscdns.net edns1.ultradns.com	AS12008 Vercara, LLC AS12008 Vercara, LLC
udns2.cscdns.uk	2001:502:4612::201 204.74.111.1	udns2.cscdns.net edns1.ultradns.org	AS12008 Vercara, LLC AS12008 Vercara, LLC

🌍 A Records1 records 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
150.171.109.183	60s	—	AS8075	Microsoft Corporation	150.171.64.0/18	🇺🇸 United States	—

📧 MX Records1 records 76ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	union-dk.mail.protection.outlook.com	2a01:111:f403:c801::1 2a01:111:f403:c803:: 2a01:111:f403:c946::7 2a01:111:f403:f909::6 52.101.11.3 52.101.194.4 52.101.8.44 52.101.9.5	mail-sn1pr0501cu00101.inbound.protection.outlook.com mail-bn1pr21cu00200.inbound.protection.outlook.com mail-ch5pr02cu00307.inbound.protection.outlook.com mail-bn3pr04cu00106.inbound.protection.outlook.com mail-sn1pr0501cu00103.inbound.protection.outlook.com mail-ch4pr04cu00104.inbound.protection.outlook.com mail-dm5pr04cu00104.inbound.protection.outlook.com mail-mn2pr04cu00205.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
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)1 records 94ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2603:1061:14:b6::1	60s	—	AS8075	Microsoft Corporation	2603:1060:0:0:0:0:0:0/31	🇺🇸 United States	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 102ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records3 records 273ms

TXT Record
4prF755QEPbFIj/nZ3ufwKWI4vspuVYmmuvJ3bfF7MZMeTiSwI0AHAVymYE2ST37LyG6IxPyzLDrj3aD7RmJXg==
MS=ms46953968
v=spf1 -all

✉️ SPF

Policy	Record (union.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.union.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc-aggregate@pentair.com; ruf=mailto:dmarc-forensic@pentair.com; pct=100; fo=0

📬 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)

🔐 DNSSEC117ms

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	2019101188
Primary NS (MNAME)	udns1.cscdns.net
Responsible (RNAME)	hostmaster@cscdns.net
Refresh	28800s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

69ms

A

61ms

MX

76ms

AAAA

94ms

TXT

273ms

CAA

44ms

HTTPS

63ms

TLSA

378ms

SOA

0ms

MTA-STS

94ms

DNSSEC

117ms

SRV

102ms

Total

1211ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 14:03:02	1211ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-18 05:33:39	1822ms	2 NS 1 A 1 MX	🔓 Insecure	View