t5e.dk

Records from scan: 2026-10-12 10:58:34 · 1242ms total · last checked 2026-10-23 00:01 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

t5e.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 April 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 40.87.155.103 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by t5e-dk.mail.protection.outlook.com, mail.t5e.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 22ms

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 Records#

1 records 33ms

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 Records#

2 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	t5e-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::a 2a01:111:f403:ca09::a 2a01:111:f403:ca3c::8 52.101.103.143 52.101.185.21 52.101.68.10 52.101.73.145	mail-db4pr02cu00204.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 108ms

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

📝 TXT Records#

3 records 124ms

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

🧩 Web & zone#

checked 2026-10-12 10:58:34

www	40.87.155.103 (AS8075) (address records, no CNAME)
www vs bare domain	Same network t5e.dk: 40.87.155.103 (AS8075) www.t5e.dk: 40.87.155.103 (AS8075)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u6945254.wl005.sendgrid.net	RSA · ~2048 bit
s2	s1.domainkey.u6945254.wl005.sendgrid.net	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

108ms

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

🏷️ SOA#

27ms

Field	Value
Serial	2026101101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-12 11:25:44

Field	Value
Registrar	ONE.COM A/S
Registered	2006-04-08
Expires	2027-04-30 (188d)

🔗 Same registrant#

4 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
aktueldebat.dk	ONE.COM A/S
aqa.dk	Punktum dk A/S (direct)
dedanskevagthunde.dk	Punktum dk A/S (direct)
tasktogo.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

22ms

33ms

29ms

AAAA

32ms

TXT

124ms

CAA

32ms

HTTPS

27ms

TLSA

665ms

SOA

27ms

MTA-STS

50ms

DNSSEC

108ms

SRV

108ms

Total

1242ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 10:58:34 shown	1242ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-30 16:06:41	1046ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-27 14:18:32	786ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-15 02:03:12	1163ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-25 03:57:15	901ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-12 12:16:14	2318ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-17 17:50:06	1040ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-12 20:09:24	1238ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-26 16:30:24	4366ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-24 09:35:20	1168ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 22:54:29	744ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 13:23:58	2679ms	2 NS 1 A 2 MX	🔒 Secure