Did you know that it’s possible to migrate to office 365 the content of your existing email system? This is what’s known as Office 365 migration and it can be done in the following straightforward ways:
Migrating your exchange server mailboxes. With this option, it is possible to migrate all of the customers’ emails, contacts, and calendar, all from mailboxes of the user to Office 365. Thus you will be able to do a cutover migration, staged migration, and hybrid migration. The first type of migration is used by those running exchanges such as 2003, 2007, 2010 or 2013. The second only applies to those on exchanges like 2003 and 2007. The last option is integrated migration at its core.
Migrating emails from a different email system including Gmail or Exchange. You will only be able to migrate your user’s emails in the inbox and other folders. It is not possible to migrate tasks, calendars, and contacts. There is a secure office 365 email encryption software in place.
Customers importing their own contacts, emails, and other information from their mailboxes.
As you can see, the manner in which you carry out Office 365 migration depends on who is involved. Only that the type of information you can move will depend on how you are going about the migration.