Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bigmountaininc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 22:57:13 UTC · ↺ Refresh
MX Hostnames
- bigmountaininc-com.mail.protection.outlook.com
MX Priorities
- bigmountaininc-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.206.120 (no PTR)
- 104.21.74.212 (no PTR)
- 2606:4700:3032::ac43:ce78
- 2606:4700:3037::6815:4ad4
Mail Server IPs
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
coleman.ns.cloudflare.com dns.cloudflare.com 2399358270 10000 2400 604800 1800
Primary NS (mname)
coleman.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399358270
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
mckinley.ns.cloudflare.com
coleman.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms22092795
- T65-1N6-5T4
- SPFv=spf1 include:spf.protection.outlook.com -all
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