Analyze your domain's SPF, DKIM, and DMARC records to ensure your emails reach the inbox.
Enter a sending domain to inspect the public DNS records that mailbox providers use to authenticate email. The checker looks for SPF, which authorizes sending servers; DKIM, which adds a verifiable signature; DMARC, which defines what to do when authentication fails; and MX records, which identify the servers that receive mail for the domain. You will get a score, the records we found, and specific issues to fix.
A clean result cannot guarantee inbox placement—sender reputation, list quality, message content, and engagement also matter—but correct authentication is the foundation. If a check fails, use the practical guides for SPF, DKIM, DMARC, and MX records.