Dovecot is an open-source software solution designed for managing email services. It primarily functions as an IMAP and POP3 server, allowing users to access and retrieve their emails from various devices. Known for its high performance and scalability, Dovecot is widely used by both small and large organizations. Dovecot supports various authentication methods and can work with different storage backends, making it flexible for different setups. It is often chosen for its ease of configuration and robust security features, ensuring that email data remains safe and accessible to users.