So far in this book, we have prepared you for purchasing and beginning to use Office 365. However, a key factor yet to be completed is to migrate mailbox content from your existing mail system.
In this chapter, we will discuss the various options available for performing a migration to Exchange Online and what needs to be done to prepare. This will cover the following topics:
Overview of a simple migration
Available migration options
Differences between source platforms
The migration process
Preparing your environment for migration