My knowledge is lacking a bit when it comes to upgrading Office. I have a customer moving from Office 2010 to O365 (at my request). They are currently using Outlook. When O365 installs do I have to configure Outlook from scratch, or point it at the .pst I want it to use, or does it take over email duties automatically? I'm surprised I haven't had to cross this bridge before but not many Outlook users in the residential work I do.