Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
buildingalternatives.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 05:56:53 UTC · ↺ Refresh
MX Hostnames
- buildingalternatives-com.mail.protection.outlook.com
MX Priorities
- buildingalternatives-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.69.181 (no PTR)
- 172.67.211.5 (no PTR)
- 2606:4700:3036::6815:45b5
- 2606:4700:3032::ac43:d305
Mail Server IPs
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
denver.ns.cloudflare.com dns.cloudflare.com 2398447365 10000 2400 604800 1800
Primary NS (mname)
denver.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398447365
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
denver.ns.cloudflare.com
lola.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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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