mailsend.dk DNS records

🖥️ Nameservers2 records 35ms

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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.78.84	43200s	—	AS205984	Powernet Aps	185.51.78.0/23	🇩🇰 Denmark	—

📧 MX Records7 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	2a00:1450:4025:c03::1a 64.233.162.26	rc-in-f26.1e100.net li-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	192.178.158.26 2a00:1450:4025:402::1b	lcdels-in-f26.1e100.net rb-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	192.178.158.26 2404:6800:4003:c26::1a	lcdels-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4000:1025::1b	lcdels-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx4.googlemail.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx5.googlemail.com	192.178.230.26 2404:6800:400b:c01b::1b	yunrtab-in-f26.1e100.net yunrtab-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	mailsend.dk → 185.51.78.84
🔶 Autoconfig	mailsend.dk → 185.51.78.84

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 367ms

TXT Record
google-site-verification=jPEWovvKxyb5Z9F0jW3HediUHK32kWnLp-pSQTJ1Xik
v=spf1 mx a include:web.shared.mysmtp.com ~all

✉️ SPF

Policy	Record (mailsend.dk)
~all (soft fail)	v=spf1 mx a include:web.shared.mysmtp.com ~all

📨 DMARC

Policy	Record (_dmarc.mailsend.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:sf@it-magic.dk;

📬 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.mailsend.dk	mailsend.dk

🔗 TLSA / DANE

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

🔐 DNSSEC54ms

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

🏷️ SOA33ms

Field	Value
Serial	2026032401
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

35ms

A

35ms

MX

35ms

AAAA

40ms

TXT

367ms

CAA

93ms

HTTPS

93ms

TLSA

225ms

SOA

33ms

MTA-STS

61ms

DNSSEC

54ms

SRV

119ms

Total

1215ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 08:07:28	984ms	2 NS 1 A 7 MX	🔒 Secure	View
2026-07-02 14:54:25	1200ms	2 NS 1 A 7 MX	🔒 Secure	View
2026-06-24 02:30:19	1215ms	2 NS 1 A 7 MX	🔒 Secure	View
2026-06-23 20:57:19	1175ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 22:47:55	655ms	2 NS 1 A 7 MX	🔒 Secure	View
2026-06-17 13:48:54	2370ms	2 NS 1 A 7 MX	🔒 Secure	View