The Domain-based Message Authentication, Reporting and Conformance (DMARC) is an email standard that used in email transactional activity. It helps validates a senders identity using Sender Policy Framework (SPF) and DomainKeys Identified Mail (DKIM). The receiving email service uses SPF and DKIM to confirm the sender’s identity. If the receiving email service confirms the sender’s identity it will forward the email to the receiver’s inbox. If the receiving email service cannot confirm the sender’s identity it will mark the email as spam. 

Using DMARC has its benefits such as helps to protect the users, employees from cybercrime, reduce customer support costs relating to email fraud and improve trust in the emails organisation sends and receives.