Configuring DNS records involves setting up SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting & Conformance). These records help email servers verify that your emails are being sent from an authorized domain.
SPF: Add an SPF record to specify which mail servers are allowed to send emails on behalf of your domain. DKIM: Set up DKIM to add a digital signature to your emails, confirming that they have not been altered. DMARC: Implement DMARC to provide instructions to receiving servers on how to handle emails that fail SPF or DKIM checks.