What is DMARC, how does it work and why you should use it
DMARC is an acronym that stands for Domain-based Message Authentication, Reporting and Conformance and is an email authentication protocol.
Domain owners can use DMARC to protect their domains from unauthorized use.
Unauthorized uses of a domain are commonly known as email spoofing. Someone sends an email and uses your domain in the email From part.
With DMARC, you publish information on how a receiving ESP (Email Service Provider) should handle unauthorized emails from your domain. Additiona