The Odoo Email Marketing app helps customers to create and send sophisticated, professional-looking messages to targeted segments of their customer base. It can be used to deliver newsletters, promos, announcements, and other types of messages to customers. It also makes it easy to track and analyze customer engagement, making it possible to determine what campaigns are working and which ones need to be tweaked or changed. It also provides automatic segmentation of customer lists based on criteria like country, language, etc. Ultimately, the Odoo Email Marketing plugin helps customers create effective marketing campaigns with the data-driven insights they need to succeed.