Domain-Based Message Authentication, Reporting, and Conformance What it does: Combines SPF and DKIM results and tells the receiver what to do if an email fails the checks.
What it does: Enables you to designate which servers are allowed to send emails from your domain.
How it works: You publish a list of trusted servers in your domain’s DNS. If an email comes from somewhere else, it can be blocked or marked as suspicious.
Why it matters: Helps stop attackers from sending fake emails using your domain name.