Email Health Checker
Check SPF, DKIM, DMARC, BIMI, and MTA-STS configuration for any domain. Get a health score and actionable recommendations.
What This Tool Checks
SPF (Sender Policy Framework)
Verifies which mail servers are authorized to send email for your domain.
DKIM (DomainKeys Identified Mail)
Checks for cryptographic signatures that verify email authenticity.
DMARC (Domain-based Message Authentication)
Validates your policy for handling emails that fail SPF/DKIM checks.
BIMI (Brand Indicators for Message Identification)
Checks if your brand logo is configured to display in email clients.
MTA-STS (Mail Transfer Agent Strict Transport Security)
Verifies if TLS encryption is enforced for incoming email.