Email Deliverability Health Check
Enter your domain and get an instant A–F report card covering SPF, DKIM, DMARC, blacklists, MX records, and sender reputation.
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What Your Results Mean
SPF Record
Sender Policy Framework tells email servers which IPs are allowed to send email on behalf of your domain. Missing or incorrect SPF causes 15–30% of emails to be filtered as spam.
DKIM Signature
DomainKeys Identified Mail cryptographically signs your emails. Without DKIM, your emails can be spoofed and are more likely to land in spam — especially on Gmail.
DMARC Policy
Domain-based Message Authentication tells receiving servers what to do with emails that fail SPF/DKIM checks. Without DMARC, your domain can be spoofed for phishing.
Blacklist Status
If your IP or domain appears on a major blacklist (Spamhaus, Barracuda, SORBS), your emails may be blocked outright at major ISPs. Blacklisting can happen within hours of a spam complaint spike.
Related Free Tools
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