firstmail.dk

Records from scan: 2026-09-30 22:12:01 · 1209ms total · last checked 2026-10-24 09:13 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

firstmail.dk is a .dk domain served by 4 nameservers (ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 168.61.97.117 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by firstmail-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 54ms

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 Records#

1 records 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
168.61.97.117	1800s	—	AS8075	Microsoft Corporation	168.61.0.0/16	🇮🇪 Ireland	Dublin

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	firstmail-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::d 2a01:111:f403:ca09::20 2a01:111:f403:ca48::8 52.101.103.162 52.101.185.114 52.101.73.120 52.101.73.126	mail-db7pr03cu00601.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-am8pr83cu00106.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 Records#

2 records 65ms

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

📝 TXT Records#

3 records 225ms

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

🧩 Web & zone#

checked 2026-10-12 05:34:32

www CNAME	az-web-01.sirrar.dk (all on sirrar.dk) → 168.61.97.117 (AS8075)
www vs bare domain	Same network firstmail.dk: 168.61.97.117 (AS8075) www.firstmail.dk: 168.61.97.117 (AS8075)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-firstmail-dk._domainkey.egebirk.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-firstmail-dk._domainkey.egebirk.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

124ms

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

🏷️ SOA#

28ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

54ms

29ms

42ms

AAAA

44ms

TXT

225ms

CAA

43ms

HTTPS

22ms

TLSA

585ms

SOA

28ms

MTA-STS

123ms

DNSSEC

124ms

SRV

65ms

Total

1209ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 22:12:01 shown	1209ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-28 02:39:09	954ms	4 NS 1 A 1 MX	🔓 Insecure
2026-07-02 00:50:10	990ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 09:23:07	921ms	4 NS 1 A 1 MX	🔓 Insecure