readmail.dk DNS records

🖥️ Nameservers2 records 50ms

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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.157.112.200	43200s	78-157-112-200.norlyscustomer.net	AS39642	Sinal A/S	78.157.96.0/19	🇩🇰 Denmark	Aalborg

📧 MX Records1 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	readmail-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::c 2a01:111:f403:ca09::3 2a01:111:f403:ca09::9 52.101.68.16 52.101.68.21 52.101.68.5 52.101.73.22	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 52.98.214.88
🔶 Autoconfig	78.157.112.200

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 208ms

TXT Record
MS=ms94965495
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (readmail.dk)
-all (hard fail)	v=spf1 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)

🔐 DNSSEC142ms

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

🏷️ SOA0ms

Field	Value
Serial	2026072601
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

50ms

A

42ms

MX

59ms

AAAA

53ms

TXT

208ms

CAA

59ms

HTTPS

48ms

TLSA

304ms

SOA

0ms

MTA-STS

58ms

DNSSEC

142ms

SRV

129ms

Total

1256ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 02:40:46	1004ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 11:58:15	1256ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 04:52:48	813ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 17:36:38	3215ms	2 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-21 20:45:26	1178ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 02:49:12	881ms	2 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-20 06:03:03	3044ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 20:48:02	2863ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 13:53:05	4024ms	2 NS 1 A 1 MX	🔒 Secure	View