Exim is a widely-used message transfer agent (MTA) originally developed at the University of Cambridge. It is known for its flexibility, robustness, and extensive feature set, making it a popular choice for handling email delivery on Unix-like operating systems. Exim supports various mail transfer protocols such as SMTP, LMTP, and SMTPS, and offers advanced features like aliasing, virtual domains, and access control lists. With its efficient design and comprehensive documentation, Exim provides a reliable solution for managing email communication in diverse environments.
