Enter your domain to check its SPF, DKIM, and DMARC records. Missing or misconfigured email authentication records cause legitimate emails to be rejected or marked as spam by recipient mail servers.
Sender Policy Framework — lists which servers are authorized to send email for your domain. Missing SPF is a common cause of email rejection.
DomainKeys Identified Mail — a cryptographic signature attached to outgoing email. Verifies the email was not modified in transit.
Domain-based Message Authentication — tells recipient servers what to do with emails that fail SPF or DKIM checks. Critical for anti-spoofing protection.