Have you heard about Hosted Exchange by Microsoft? and others cloud services offer by Microsoft?

Tired of your POP or IMAP email? Feel it too troublesome and less effective to manage your email over various devices? Most of small and medium scale enterprise (SMEs) with no in-house tech expertise often find it difficult to choose or manage their email server as email has been great importance in the business communication.

Exchange online is a subscription-based software plus services (Saas) and designed for organizations that want to get the benefits of cloud-based email with the robust capabilities of an on-premises Exchange deployment.

Exchange Online gives you the opportunity to build on your customer service and business efficiency by enabling you to contact, collaborate and share wherever you are and whenever you need to be. The power of Exchange email, calendar, and contacts with built-in functionality to help protect against viruses and spam at no extra cost gives you anywhere access to mailbox data across PCs, the Web and mobile devices.