I'm engaged in a hybrid Exchange 2010 migration. One point of conjecture is what to do about user PST files. No mailboxes have been migrated to the cloud as of yet. I suggest running the PST Capture Tool and ultimately importing PST data into the users' archive mailboxes, either pre or post migration depending on the amount of data an individual has overall. Some colleagues of mine seem to think that the users should be able to keep their PST files and continue to use them without difficulty. I guess I really have 2 questions:
1. Can users with mailboxes in O365 continue to use PST files on their local hard drive?
2. Wouldn't they run the risk of corrupting those PST files if they were to try and move data between them and their mailbox (i.e., across the WAN)?
I'm aware of all the reasons for ridding ourselves of PST files altogether, but that's a separate discussion.