1. Improved Email Deliverability: ISPs and email providers are more likely to deliver your emails to the inbox rather than the spam folder. 2. Enhanced Reputation: Protecting your domain from being spoofed helps maintain a positive reputation. 3. Increased Security: Reduces the risk of phishing attacks and other fraudulent activities using your domain. 4. Better Reporting: DMARC provides detailed reports on how your emails are being handled and if any unauthorized sources are using your domain.