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Validate your SPF records and email authentication configuration. Ensure authorized servers can send emails on your domain's behalf.
Create SPF records for your domain.
Verify DKIM signatures and cryptographic keys.
Check DMARC policy configuration and alignment.
Complete email authentication analysis.
Validate all DNS record configurations.
Advanced SPF record analysis and debugging.
SPF (Sender Policy Framework) records are DNS entries that specify which mail servers are authorized to send emails from your domain. They help prevent email spoofing and improve deliverability by allowing receiving servers to verify legitimate senders.
DNS publication
You publish a TXT record listing authorized sending sources.
Email verification
Receiving servers check if the sender is in your SPF record.
Policy enforcement
Unauthorized emails are handled per your policy (~all, -all, etc).
Prevents spoofing
Makes it harder for attackers to forge emails from your domain.
Improves deliverability
Legitimate emails are more likely to reach the inbox.
Domain protection
Protects your domain reputation from abuse by spammers.
InboxKit provides complete email infrastructure with automated SPF, DKIM, and DMARC setup
