rtx.dk DNS records

🖥️ Nameservers2 records 31ms

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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
150.171.109.53	600s	—	AS8075	Microsoft Corporation	150.171.64.0/18	🇺🇸 United States	—

📧 MX Records1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	1800s	rtx-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::b 2a01:111:f403:ca38::a 2a01:111:f403:ca48::12 52.101.103.39 52.101.73.126 52.101.73.8 52.101.91.153	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com mail-matpr04cu00101.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 67ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records7 records 130ms

TXT Record
anthropic-domain-verification-scby6x=FpxX25xCr3TdnyOJDX4jp8v8C
apple-domain-verification=PIkdjlxSexhsLhpG
atlassian-domain-verification=5S//riTst/jLrn2NLXdvLTSmgG4Cl7Ze0q7XJY3xATkVWjEwhux77s0KzSMuDJAk
atlassian-sending-domain-verification=57e312c0-babd-4c6d-a6fe-e86e7c3efdad
ciscocidomainverification=5a2e672b6f6a13f5ddac569cab06f496d46eb0b0683efb4ed395d336590bbffa
docusign=07316c65-719d-41dc-934e-5059bb5febe4
v=spf1 include:spf1.emarketeer.com include:mailgun.org include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com include:amazonses.com ~all

✉️ SPF

Policy	Record (rtx.dk)
~all (soft fail)	v=spf1 include:spf1.emarketeer.com include:mailgun.org include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com include:amazonses.com ~all

📨 DMARC

Policy	Record (_dmarc.rtx.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:itdepartment@rtx.dk; adkim=r; aspf=r; pct=100

📬 MTA-STS320ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	20260224091111Z
max_age	2419200s
Policy MX	rtx-dk.mail.protection.outlook.com, mx.sendgrid.net, feedback-smtp.eu-west-1.amazonses.com

📈 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)

🔐 DNSSEC110ms

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

🏷️ SOA0ms

Field	Value
Serial	2026090301
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 RegistrationWHOIS fetched 2026-09-05 06:39:26

Field	Value
Registrar	ONE.COM A/S
Registered	1998-05-18
Expires	2031-06-30 (1759d)

📋 WHOIS

⏱️ Lookup Timing

NS

31ms

A

39ms

MX

36ms

AAAA

40ms

TXT

130ms

CAA

27ms

HTTPS

26ms

TLSA

499ms

SOA

0ms

MTA-STS

320ms

DNSSEC

110ms

SRV

67ms

Total

1262ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-05 06:38:09	1262ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 14:28:48	5808ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 06:47:41	3144ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 17:50:08	1484ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 06:39:45	1129ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 05:04:33	993ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 23:11:39	977ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 15:34:22	1084ms	2 NS 1 A 1 MX	🔒 Secure	View