Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cassi.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 09:03:00 UTC · ↺ Refresh
MX Hostnames
- smtp.cassi.com.br
MX Priorities
- smtp.cassi.com.br: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 45.173.13.14 ↩ smtp.cassi.com.br
SOA Record
Raw SOA
ns1-05.azure-dns.com gti.operacaosuporte.cassi.com.br 1 3600 300 2419200 300
Primary NS (mname)
ns1-05.azure-dns.com
Admin Email (rname)
gti@operacaosuporte.cassi.com.br
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns3-05.azure-dns.org
ns4-05.azure-dns.info
ns1-05.azure-dns.com
ns2-05.azure-dns.net
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:189.75.117.160/27 ip4:45.173.13.0/24 ip4:204.14.234.64/28 ip4:204.14.232.64/28 ip4:182.50.78.64/28 ip4:96.43.144.64/31 ip4:96.43.148.64/31 include:spf.protection.outlook.com include:casspf.cassi.com.br include:_spf.salesforce.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; adkim=r; aspf=r; pct=10; sp=none
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 10% of failing messages only
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
2 records- SPFv=spf1 a mx ip4:189.75.117.160/27 ip4:45.173.13.0/24 ip4:204.14.234.64/28 ip4:204.14.232.64/28 ip4:182.50.78.64/28 ip4:96.43.144.64/31 ip4:96.43.148.64/31 include:spf.protection.outlook.com include:casspf.cassi.com.br include:_spf.salesforce.com -all
- ms-domain-verification=7c0f23a3-3a02-48ef-8355-15fd0960d3fb
Full email verification for cassi.com.br
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