Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mackenzie.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 08:16:13 UTC · ↺ Refresh
MX Hostnames
- mackenzie-br.mail.protection.outlook.com
MX Priorities
- mackenzie-br.mail.protection.outlook.com: 0
A / AAAA Records
- 54.232.204.66 ↩ ec2-54-232-204-66.sa-east-1.compute.amazonaws.com
Mail Server IPs
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
dns.mackenzie.com.br root.mackenzie.com.br 2014122501 3600 1800 1209600 3600
Primary NS (mname)
dns.mackenzie.com.br
Admin Email (rname)
root@mackenzie.com.br
Serial
2014122501
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns.mackenzie.br
ns2.mackenzie.br
ns3.mackenzie.br
SPF Record
✓ Strict (-all)
v=spf1 a mx include:_spf.elasticemail.com include:spf.aknamail.com.br include:spf.protection.outlook.com include:sendgrid.net include:_spf.rdstation.com.br a:lb.mackenzie.br ip4:168.197.92.100 ip4:168.197.92.200 -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- docusign=3a5a5348-f303-4f8b-92cd-fc93e3212892
- docusign=fd7dc3c5-9436-4452-b93d-593892b4ad85
- SPFv=spf1 a mx include:_spf.elasticemail.com include:spf.aknamail.com.br include:spf.protection.outlook.com include:sendgrid.net include:_spf.rdstation.com.br a:lb.mackenzie.br ip4:168.197.92.100 ip4:168.197.92.200 -all
- google-site-verification=7hCfS7QZ5V2z9V0wVkJsMm8usosdJ4EHn-50OGTScB8
Full email verification for mackenzie.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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