DMARC - Domain based Message Authentication, Reporting, and Conformance is a security tool used to protect email systems from being abused by attackers. It helps prevent email spoofing, where someone fakes an email to look like it came from a trusted source.
Here’s a simple explanation:
- Verification: DMARC checks if emails claiming to come from your domain (e.g., @yourcompany.com) are actually sent by your authorized servers.
- Protection: If a suspicious email fails these checks, DMARC can block or reject it, stopping fake emails from reaching users.
- Reporting: DMARC provides reports to domain owners, so they can see if someone is trying to misuse their email address and fix any problems.
Think of DMARC as a bouncer for your email, making sure only legitimate messages from your domain get through while kicking out the fakes!