Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
efficienttexas.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 06:30:16 UTC · ↺ Refresh
MX Hostnames
- efficienttexas-com.mail.protection.outlook.com
MX Priorities
- efficienttexas-com.mail.protection.outlook.com: 0
A / AAAA Records
- 151.101.194.159 (no PTR)
Mail Server IPs
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:104.0.143.241 ip4:97.105.195.106 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- MS=ms67207570
- google-site-verification=gj2dQnwxfvUs8ftl62-Jv592c1tUiwBRSIf8WgikPfI
- SPFv=spf1 include:spf.protection.outlook.com ip4:104.0.143.241 ip4:97.105.195.106 -all
- mscid=jRv4WaOwBE5SztK0vUApw7Y2akNN7WcnygjQE6HNGAL6ibQZ378Johcaxrdl1StaTTNxxaHYAgN1mOEcKx/uuQ==
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