dtm.dk DNS records

🖥️ Nameservers2 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.116.232.218	14400s	218.giga-ptr.232.116.217.in-addr.arpa web18.gigahost.dk	AS47292	Sentia Denmark A/S	217.116.224.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	14400s	dtm-dk.mail.protection.outlook.com	2a01:111:f403:ca04::c 2a01:111:f403:ca09::1 2a01:111:f403:ca09::24 2a01:111:f403:ca09::28 52.101.68.0 52.101.68.5 52.101.73.153 52.101.73.4	mail-db9pr02cu00204.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 194ms

TXT Record
v=spf1 mx ip4:85.129.119.192/28 ip4:212.27.12.146 include:servers.mcsv.net include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (dtm.dk)
-all (hard fail)	v=spf1 mx ip4:85.129.119.192/28 ip4:212.27.12.146 include:servers.mcsv.net include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.dtm.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:jan@dtm.dk

📬 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)

🔐 DNSSEC99ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

49ms

A

46ms

MX

35ms

AAAA

37ms

TXT

194ms

CAA

54ms

HTTPS

63ms

TLSA

366ms

SOA

0ms

MTA-STS

70ms

DNSSEC

99ms

SRV

2062ms

Total

2829ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 20:46:12	2829ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 14:07:23	5021ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 15:02:38	1152ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-20 17:41:37	1131ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 02:45:08	1349ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 04:50:21	792ms	2 NS 1 A 1 MX	🔒 Secure	View