Sendster is a self-hosted email marketing platform that uses AI to help users create high-performance newsletters at a fraction of the cost of traditional services. It features an in-built AI email writer that can generate headlines, subject lines, call-to-actions, and complete email copy, saving time and improving content quality. The platform offers unlimited contacts, emails, and campaigns, along with lead forms, autoresponders, list segmentation, and powerful analytics. To protect sender reputation, it includes email verification and advanced deliverability features like content spinning and link spinning. Sendster integrates with Amazon SES and other SMTPs for low-cost sending, and supports automation via webhooks and Zapier. It is designed for marketers and businesses of any size, with pricing plans starting at $27/month.