MailMentor is an AI-powered sales tool that helps businesses create, manage, and send sales messages to convert prospects into customers. It offers a Chrome extension and integrates with Gmail, making it easy to send personalized sales messages. The tool allows users to customize their AI-generated messages by configuring message type, tone, and goals. It also offers personalization features by incorporating contact information and case studies into the messages. MailMentor aims to help businesses boost their sales results, increase efficiency, and save time and money. It offers different pricing plans, including a free plan, to accommodate the needs of businesses of all sizes.