Free SPF, DKIM, and DMARC checker
Enter a domain name to check its email authentication DNS records.
What are SPF, DKIM, and DMARC?
SPF (Sender Policy Framework) specifies which mail servers are authorized to send email for your domain, helping prevent spoofing.
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing emails, allowing receivers to verify the message was not altered in transit.
DMARC (Domain-based Message Authentication, Reporting and Conformance) builds on SPF and DKIM to tell receiving mail servers what to do with unauthenticated messages, and where to send reports.
No registration or email required. We don't save any information from this tool.
A free tool provided by Auth-Email
Auth-Email makes your Gmail, Outlook, or other OAuth 2.0 email account available to any IMAP, POP3, or SMTP email client — no app passwords or special configuration needed.