What are the best email authentication tools available?

What are the best email authentication tools available?

There are several great email authentication tools available, including SPF, DKIM, and DMARC. Each serves a different purpose in securing your email.

Can you explain how SPF works?

SPF, or Sender Policy Framework, allows domain owners to specify which mail servers are permitted to send email on behalf of their domain. This helps prevent spoofing.

What about DKIM? How does it differ from SPF?

DKIM, or DomainKeys Identified Mail, adds a digital signature to your emails, allowing the recipient to verify that the email was indeed sent by the domain it claims to be from. Unlike SPF, which checks the sender's IP, DKIM focuses on the content of the email.

And what is DMARC?

DMARC, or Domain-based Message Authentication, Reporting & Conformance, builds on SPF and DKIM by providing a way for domain owners to receive reports about email authentication issues and specify how to handle emails that fail authentication.