mailbox

Hi I am using Outlook 365 and current Mailbox Size is at 90GB 1. Can i split the mailbox year wise and attach to outlook? The way we do with .pst in windows 2. If the above is not possible then how do i manage the Mailbox size? Please advice

Is there any way to delete and create or otherwise reset to start fresh with a clean Exchange mailbox on Outlook.com? I tried looking through the Outlook.com and associated MS Account settings and help docs but couldn't find anything obvious. I also couldn't find a way to remove...