Domain authentication is a critical step to improve email deliverability. Here's how to set it up:
SPF (Sender Policy Framework): Add an SPF record to your DNS settings to specify which mail servers are permitted to send emails on behalf of your domain. DKIM (DomainKeys Identified Mail): Generate a DKIM key pair and publish the public key in your DNS settings. This allows receiving mail servers to verify the authenticity of your emails. DMARC (Domain-based Message Authentication, Reporting, and Conformance): Create a DMARC policy to instruct receiving servers on how to handle emails that fail SPF or DKIM checks.