Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dufrio.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 02:02:59 UTC · ↺ Refresh
MX Hostnames
- dufrio-com-br.mail.protection.outlook.com
MX Priorities
- dufrio-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 104.20.41.207 (no PTR)
- 172.66.155.9 (no PTR)
- 2606:4700:10::ac42:9b09
- 2606:4700:10::6814:29cf
Mail Server IPs
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
finley.ns.cloudflare.com dns.cloudflare.com 2400059403 10000 2400 604800 1800
Primary NS (mname)
finley.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400059403
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
penny.ns.cloudflare.com
finley.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:dufspf.dufrio.com.br include:mxsspf.sendpulse.com include:sendgrid.net include:spf.protection.outlook.com include:relay.mailchannels.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 6 found
selector1._domainkey
selector2._domainkey
mail._domainkey
dkim._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- google-site-verification=9vPJZiAk--njUuP25OgxKQZZwlNUKhPAU8LOEV5atpY
- google-site-verification=JPfuE35fy0UrrFloYVDwqEu21R6MeFS-eK4-pXeeKTs
- SPFv=spf1 mx include:dufspf.dufrio.com.br include:mxsspf.sendpulse.com include:sendgrid.net include:spf.protection.outlook.com include:relay.mailchannels.net -all
- XNNY55FDX46SAE56UP2JOP0OOX2WN52B32RPSVTR
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