Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
leansixsigmainstitute.org
Yes
✓ Yes
Yahoo
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 00:02:02 UTC · ↺ Refresh
MX Hostnames
- mx-biz.mail.am0.yahoodns.net
MX Priorities
- mx-biz.mail.am0.yahoodns.net: 10
A / AAAA Records
- 54.215.207.213 ↩ ec2-54-215-207-213.us-west-1.compute.amazonaws.com
Mail Server IPs
- 67.195.228.75 ↩ mtaproxy1.biz.mail.vip.gq1.yahoo.com
- 67.195.204.83 ↩ mtaproxy1.biz.mail.vip.bf1.yahoo.com
SOA Record
Raw SOA
dns1.registrar-servers.com hostmaster.registrar-servers.com 1774052734 43200 3600 604800 3601
Primary NS (mname)
dns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1774052734
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s
Nameservers (NS)
dns1.registrar-servers.com
dns2.registrar-servers.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=leansixsigmainstitute.org.hosted.spf-report.com include:spf.mta01.mailhawk.io
📊 DNS lookups: 2/10
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;fo=1;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
2 records- afternic-verification-FhLQanpbhSaPaB4HXajtsk
- SPFv=spf1 redirect=leansixsigmainstitute.org.hosted.spf-report.com include:spf.mta01.mailhawk.io
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