t5e.dk DNS records

🖥️ Nameservers2 records 29ms

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 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
40.87.155.103	600s	—	AS8075	Microsoft Corporation	40.87.128.0/17	🇮🇪 Ireland	Dublin

📧 MX Records2 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	t5e-dk.mail.protection.outlook.com	2a01:111:f403:ca09::b 2a01:111:f403:ca09::d 2a01:111:f403:ca09::e 2a01:111:f403:ca48::a 52.101.68.18 52.101.73.153 52.101.73.19 52.101.73.24	mail-am7pr05cu00103.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as8pr05cu00300.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
10	600s	mail.t5e.dk	—	—	—

📧 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

🔌 SRV Records1 records 62ms

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

📝 TXT Records3 records 177ms

TXT Record
MS=ms28075908
v=spf1 include:_spf.mail.dlx.dk -all
v=spf1 ip4:52.169.179.235 include:spf.protection.outlook.com ~all

✉️ SPF

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (t5e.dk)
-all (hard fail)	v=spf1 include:_spf.mail.dlx.dk -all
~all (soft fail)	v=spf1 ip4:52.169.179.235 include:spf.protection.outlook.com ~all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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)

🔐 DNSSEC74ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081101
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

29ms

A

34ms

MX

51ms

AAAA

40ms

TXT

177ms

CAA

37ms

HTTPS

46ms

TLSA

367ms

SOA

0ms

MTA-STS

57ms

DNSSEC

74ms

SRV

62ms

Total

901ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 03:57:15	901ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-12 12:16:14	2318ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-17 17:50:06	1040ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-12 20:09:24	1238ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-26 16:30:24	4366ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-24 09:35:20	1168ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 22:54:29	744ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 13:23:58	2679ms	2 NS 1 A 2 MX	🔒 Secure	View