With the complexity, costs and problems associated with installing a mail server, many businesses are now opting for “Hosted Exchange” in the cloud rather than bringing the server in-house. What are “cloud”-based or “hosted” services? Think of them like a gym membership. Instead of purchasing your own home gym equipment, which can be expensive, require maintenance and take up a lot of space, you can pay a small monthly fee to go to the gym and use a multi-million-dollar facility that is kept and maintained by someone else.