We are looking to migrate from on premises Exchange 2007 to Office 365. We were thinking of doing the following:
- Create accounts on Office 365
- Export PST's to Office 365
- Do NOT link AD with Office via federated services
This will mean users will have two logins. One domain and another for email.
Why? Because we are intending to rebuild the whole domain.
Question: At a later stage, we are intending to have the link enabled with the new domain connected. What are the implications of doing this? Is it even possible to merge the Mailbox (Office 365) with an AD user?
We need to know if this is possible so we do not face issues down the line. If it is not possible then we will need to sort out AD and then migrate onto Office 365 with federated services. We are only trying to move onto Office 365 a bit sooner to get Office applications etc without having to pay for more licenses etc.
Any help will be appreciated on recommendations.