Exchange
Microsoft Exchange is a popular email and collaboration platform that includes email, calendaring, contacts, and tasks. Exchange was created to enable effective communication and collaboration within an organization, providing users with a reliable and secure way to access their emails and communicate with colleagues. It offers several features such as shared mailbox, public folders, and global address list. Moreover, Exchange provides a high level of security and protection against various threats, including malware and spam. It is widely used by businesses of all sizes and is considered the standard for corporate email and collaboration.