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Validate DKIM signatures and verify email authentication configuration. Check public key records and ensure proper cryptographic signing setup.
Generate DKIM keys and DNS records for email authentication.
Validate SPF records and email sender authorization.
Complete domain authentication and deliverability analysis.
Create SPF records for email server authorization.
Test email content for potential spam triggers.
Calculate optimal mailbox setup for email campaigns.
DKIM (DomainKeys Identified Mail) uses cryptographic signatures to verify email authenticity and prevent tampering during transmission. It's essential for email deliverability and security.
1. Email signing
Mail server signs outgoing messages with private cryptographic key.
2. DNS publication
Public key published in DNS as TXT record with selector.
3. Verification
Receiving servers verify signatures using published public key.
Google Workspace
Uses 'google' selector with 2048-bit RSA keys.
Microsoft 365
Uses 'selector1' and 'selector2' with CNAME records.
Email services
SendGrid, Mailchimp, and others use custom selectors.
InboxKit automatically generates and manages DKIM keys for maximum email security
