SPF (Sender Policy Framework): SPF helps prevent spammers from sending unauthorized emails by specifying which IP addresses are allowed to send emails on behalf of your domain. This reduces the chances of your domain being blacklisted.
DKIM (DomainKeys Identified Mail): DKIM adds a unique signature to each email, verifying its authenticity and ensuring that the content has not been tampered with. This builds trust with recipients and ESPs.
DMARC (Domain-based Message Authentication, Reporting, and Conformance): DMARC combines SPF and DKIM results to instruct receiving servers on how to handle emails that fail authentication. It also provides feedback on email authentication issues.
Implementation: Configure and validate SPF, DKIM, and DMARC records for your domains to ensure proper email authentication.
Monitoring: Regularly monitor authentication reports and logs to identify and resolve any issues, ensuring consistent email delivery.
Adjustments: Make necessary adjustments to email authentication settings based on feedback and reports to maintain a high level of trust and deliverability.