flexsus.dk DNS records

🖥️ Nameservers4 records 52ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.bdm.microsoftonline.com	13.107.236.208 2603:1061:0:700::d0	ns1-208.azure-dns.com ns1-208.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2.bdm.microsoftonline.com	150.171.21.208 2620:1ec:8ec:700::d0	ns2-208.azure-dns.net ns2-208.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3.bdm.microsoftonline.com	204.14.183.208 2a01:111:4000:700::d0	ns3-208.azure-dns.org ns3-208.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4.bdm.microsoftonline.com	208.84.5.208 2620:1ec:bda:700::d0	ns4-208.azure-dns.info ns4-208.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records1 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
40.85.92.115	3600s	—	AS8075	Microsoft Corporation	40.84.0.0/15	🇮🇪 Ireland	Dublin

📧 MX Records1 records 69ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	flexsus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca09::24 2a01:111:f403:ca09::5 2a01:111:f403:ca38::8 52.101.68.5 52.101.73.123 52.101.73.28 52.101.73.30	mail-du2pr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am7pr05cu00306.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 82ms

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

📝 TXT Records2 records 203ms

TXT Record
mscid=Lu9XpVvqfMVV2farle2AxPy5SMbVsZ4BSmvoJwwjXpjhV2rv7q8pg+P3bQ5DszuNLwpitzSNnxV/ox+g2NBlqA==
v=spf1 ip4:13.94.116.5 include:spf.protection.outlook.com include:sendgrid.net -all

✉️ SPF

Policy	Record (flexsus.dk)
-all (hard fail)	v=spf1 ip4:13.94.116.5 include:spf.protection.outlook.com include:sendgrid.net -all

📨 DMARC

Policy	Record (_dmarc.flexsus.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; pct=100;

📬 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)

🔐 DNSSEC97ms

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	1
Primary NS (MNAME)	ns1.bdm.microsoftonline.com
Responsible (RNAME)	azuredns-hostmaster@microsoft.com
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

52ms

A

47ms

MX

69ms

AAAA

63ms

TXT

203ms

CAA

46ms

HTTPS

65ms

TLSA

364ms

SOA

0ms

MTA-STS

71ms

DNSSEC

97ms

SRV

82ms

Total

1216ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 23:18:56	1216ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 22:28:52	1458ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 10:15:29	3515ms	4 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-17 10:07:55	1534ms	4 NS 1 A 1 MX	🔓 Insecure	View