Enter your domain and, if available, the DKIM selector to fetch the DNS records for SPF, DKIM, and DMARC. This tool helps you ensure that your email domain is properly configured to prevent spam and phishing.
SPF (Sender Policy Framework): SPF is a DNS record that specifies which mail servers are allowed to send email on behalf of your domain. It helps prevent spammers from sending messages with forged 'from' addresses on your domain.
DKIM (DomainKeys Identified Mail): DKIM uses cryptographic authentication to verify that an email was sent by an authorized mail server and that it hasn't been altered in transit. It involves adding a digital signature to the email's header.
DMARC (Domain-based Message Authentication, Reporting, and Conformance): DMARC builds on SPF and DKIM, allowing domain owners to specify how unauthenticated emails should be handled (e.g., rejected or quarantined). It also provides a way for domain owners to receive reports about email sent from their domain.