rexholm.dk DNS records

🖥️ Nameservers2 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.155.240	60s	forward.dnsfactory.dk	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rexholm-dk.mail.protection.outlook.com	2a01:111:f403:ca04::c 2a01:111:f403:ca04::f 2a01:111:f403:ca09::8 2a01:111:f403:ca48::12 52.101.103.39 52.101.209.153 52.101.73.19 52.101.73.6	mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 52.98.154.152
🔶 Autoconfig	93.191.155.240

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 69ms

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

📝 TXT Records3 records 158ms

TXT Record
_globalsign-domain-verification=lCRaOp9RMalFoiNtAg_CQcA4ux2mOSVxSl-KODNBuE
k8kdyr41g0xqkmyptwt241qggt216162
v=spf1 ip4:178.72.19.197 include:cmail1.com include:spf.protection.outlook.com include:spf.mcb.dk include:spf.mentor-it.dk -all

✉️ SPF

Policy	Record (rexholm.dk)
-all (hard fail)	v=spf1 ip4:178.72.19.197 include:cmail1.com include:spf.protection.outlook.com include:spf.mcb.dk include:spf.mentor-it.dk -all

📨 DMARC

Policy	Record (_dmarc.rexholm.dk)
p=reject	v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; 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)

🔐 DNSSEC84ms

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

🏷️ SOA0ms

Field	Value
Serial	2026040901
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

44ms

A

42ms

MX

48ms

AAAA

41ms

TXT

158ms

CAA

43ms

HTTPS

45ms

TLSA

181ms

SOA

0ms

MTA-STS

57ms

DNSSEC

84ms

SRV

69ms

Total

722ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 21:10:52	722ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 03:19:36	1225ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 18:56:48	788ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 15:44:57	2826ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 08:58:40	959ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 15:56:13	766ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 03:58:46	2078ms	2 NS 1 A 1 MX	🔒 Secure	View