firstmail.dk DNS records

🖥️ Nameservers4 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.bdm.microsoftonline.com	13.107.236.208 2603:1061:0:700::d0	ns1-208.azure-dns.com ns1-208.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2.bdm.microsoftonline.com	150.171.21.208 2620:1ec:8ec:700::d0	ns2-208.azure-dns.net ns2-208.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3.bdm.microsoftonline.com	204.14.183.208 2a01:111:4000:700::d0	ns3-208.azure-dns.org ns3-208.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4.bdm.microsoftonline.com	208.84.5.208 2620:1ec:bda:700::d0	ns4-208.azure-dns.info ns4-208.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records1 records 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
168.61.97.117	1799s	—	AS8075	Microsoft Corporation	168.61.0.0/16	🇮🇪 Ireland	Dublin

📧 MX Records1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	firstmail-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::d 2a01:111:f403:ca09::5 2a01:111:f403:ca09::7 52.101.68.3 52.101.68.32 52.101.73.26 52.101.73.4	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records2 records 76ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.egebirk.dk
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records3 records 197ms

TXT Record
MS=ms59483253
mscid=kNm+P2aIO1IpUzqpTOi++FgnaQZaWIcfTAxmia8hM5EWleSKGv7ne7/AnhrfUiMG0igf13xyppV+xerggAEthQ==
v=spf1 a:mailgw.sirrar.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (firstmail.dk)
-all (hard fail)	v=spf1 a:mailgw.sirrar.dk include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.firstmail.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@egebirk.dk,mailto:dmarc_agg@vali.email; ruf=mailto:dmarc@egebirk.dk; sp=quarantine; fo=1;

📬 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)

🔐 DNSSEC135ms

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.bdm.microsoftonline.com
Responsible (RNAME)	azuredns-hostmaster@microsoft.com
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

50ms

A

55ms

MX

53ms

AAAA

45ms

TXT

197ms

CAA

55ms

HTTPS

43ms

TLSA

240ms

SOA

0ms

MTA-STS

73ms

DNSSEC

135ms

SRV

76ms

Total

954ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 02:39:09	954ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-07-02 00:50:10	990ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 09:23:07	921ms	4 NS 1 A 1 MX	🔓 Insecure	View