lermailer.dk DNS records

🖥️ Nameservers4 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1-05.azure-dns.com	13.107.236.5 2603:1061:0:700::5	ns1-05.azure-dns.com ns1-05.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2-05.azure-dns.net	150.171.21.5 2620:1ec:8ec:700::5	ns2-05.azure-dns.net ns2-05.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3-05.azure-dns.org	204.14.183.5 2a01:111:4000:700::5	ns3-05.azure-dns.org ns3-05.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4-05.azure-dns.info	208.84.5.5 2620:1ec:bda:700::5	ns4-05.azure-dns.info ns4-05.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records1 records 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.247.66.44	3600s	—	AS31590	Rackhosting.com ApS	77.247.64.0/20	🇩🇰 Denmark	—

📧 MX Records2 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mailfilter0.rackhosting.com	77.247.73.194 77.247.73.195 77.247.73.196 77.247.73.197	mailfilter-se0.rackhosting.com mailfilter-se1.rackhosting.com mailfilter-se2.rackhosting.com mailfilter-se3.rackhosting.com	AS31590 Rackhosting.com ApS AS31590 Rackhosting.com ApS AS31590 Rackhosting.com ApS AS31590 Rackhosting.com ApS
20	3600s	mailfilter1.rackhosting.com	77.247.73.198 77.247.73.199 77.247.73.200 77.247.73.201	mailfilter-se0-1.rackhosting.com mailfilter-se1-1.rackhosting.com mailfilter-se2-1.rackhosting.com mailfilter-se3-1.rackhosting.com	AS31590 Rackhosting.com ApS AS31590 Rackhosting.com ApS AS31590 Rackhosting.com ApS AS31590 Rackhosting.com ApS

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	proxy.ghop.dk
🔶 Autoconfig	proxy.ghop.dk

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records4 records 190ms

TXT Record
JMrOlcGQNAspls5nu9s5NYRDi3+netIuh03e/UBW9lqctvbFERuAR+MOv9+mVBbU9NHJh97bchzS9noaOY5Ssg==
MS=ms80299711
MS=ms98559197
v=spf1 include:spf.rackhosting.com -all

✉️ SPF

Policy	Record (lermailer.dk)
-all (hard fail)	v=spf1 include:spf.rackhosting.com -all

📨 DMARC

Policy	Record (_dmarc.lermailer.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=reject; fo=1; adkim=s; aspf=s; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

📬 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.lermailer.dk	proxy.ghop.dk

🔗 TLSA / DANE

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

🔐 DNSSEC79ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns1-05.azure-dns.com
Responsible (RNAME)	domain@sweco.se
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

38ms

A

29ms

MX

50ms

AAAA

40ms

TXT

190ms

CAA

25ms

HTTPS

51ms

TLSA

92ms

SOA

0ms

MTA-STS

47ms

DNSSEC

79ms

SRV

65ms

Total

757ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 16:26:44	757ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-07-02 23:34:31	1540ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-25 03:25:07	1345ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-21 05:00:53	1014ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-20 05:01:36	788ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-17 22:12:54	1584ms	4 NS 1 A 2 MX	🔓 Insecure	View