Microsoft Exchange server is the most popular email and collaboration platform for business. It helps business better communicate with partners and customers, and is a backup for all of your contacts, calendar, and e-mail. However, building and managing an Exchange server environment is costly and complex. It requires a large investment in hardware, software, and technical expertise to install it, configure it, and manage it on a daily basis. Exchange hosting allows Small to Medium Businesses to enjoy all the productivity and collaborative benefits of Exchange, without any of the frustrations of managing it in-house. No investment in hardware of software, just a flat per user per month fee.