simbamail.dk DNS records

🖥️ Nameservers2 records 27ms

Nameserver	IP addresses	PTR	ASN / ISP
alexandra.ns.cloudflare.com	108.162.194.30 162.159.38.30 172.64.34.30 2606:4700:50::a29f:261e 2803:f800:50::6ca2:c21e 2a06:98c1:50::ac40:221e	alexandra.ns.cloudflare.com alexandra.ns.cloudflare.com alexandra.ns.cloudflare.com alexandra.ns.cloudflare.com alexandra.ns.cloudflare.com alexandra.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
elias.ns.cloudflare.com	108.162.195.29 162.159.44.29 172.64.35.29 2606:4700:58::a29f:2c1d 2803:f800:50::6ca2:c31d 2a06:98c1:50::ac40:231d	elias.ns.cloudflare.com elias.ns.cloudflare.com elias.ns.cloudflare.com elias.ns.cloudflare.com elias.ns.cloudflare.com elias.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.46.35	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.223.35	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	mx.mailcow.cloud	86.52.113.234	86-52-113-234.norlyscustomer.net	AS39642 Sinal A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	mx.mailcow.cloud → 86.52.113.234
🔶 Autoconfig	mx.mailcow.cloud → 86.52.113.234

🔷 AAAA Records (IPv6)2 records 36ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:df23	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:2e23	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.46.35,172.67.223.35 ech=AEX+DQBB4wAgACC4fsfBA0wpiChSKINLH/16AWAXDv3Vw0exD3YK6FDsUgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:df23,2606:4700:3036::6815:2e23

🔌 SRV Records2 records 151ms

Service	Priority	Weight	Port	Target
_imap._tcp	0	1	143	mx.mailcow.cloud
_imaps._tcp	0	1	993	mx.mailcow.cloud

📝 TXT Records1 records 153ms

TXT Record
v=spf1 mx a -all

✉️ SPF

Policy	Record (simbamail.dk)
-all (hard fail)	v=spf1 mx a -all

📨 DMARC

Policy	Record (_dmarc.simbamail.dk)
p=reject	v=DMARC1; p=reject;

📬 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)

🔐 DNSSEC98ms

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

🏷️ SOA0ms

Field	Value
Serial	2413654477
Primary NS (MNAME)	alexandra.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

27ms

A

27ms

MX

29ms

AAAA

36ms

TXT

153ms

CAA

31ms

HTTPS

32ms

TLSA

270ms

SOA

0ms

MTA-STS

48ms

DNSSEC

98ms

SRV

151ms

Total

914ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 01:08:18	914ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-27 10:02:40	1706ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-24 13:26:46	1354ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-04 04:47:40	2803ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-25 18:35:07	9022ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-07 15:33:17	2527ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-03 12:25:39	4795ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 13:04:11	3541ms	2 NS 2 A 1 MX	🔓 Insecure	View