Regular List Cleaning: Regularly update and clean your email list to remove inactive or invalid addresses. Personalization: Use personalization techniques to make your emails more relevant to the recipients, thereby reducing the chances of them marking it as spam. Authentication: Implement email authentication protocols like SPF, DKIM, and DMARC to enhance your email's credibility. User Engagement: Encourage user engagement through interactive content and clear calls-to-action to minimize the chances of being marked as spam. Monitoring and Testing: Regularly monitor your email campaigns and conduct A/B testing to identify and rectify issues that may lead to high FPR.