Before you make a decision, be sure to consider your risk -- including downtime, migration, compliance, plan flexibility, functionality limitations, and more.
Businesses that want to outsource Microsoft Exchange email have many options, including Microsoft itself through an office 365 subscription. Choosing Microsoft to host Exchange might seem like the lowest risk option. But this is not always the case – especially for many small to medium sized businesses.A Buyer's Guide for Hosted Exchange Email
Download from Here