Before your Exchange mailbox is migrated to Office 365, there are a few things you should do to make the transition as smooth as possible.

Empty Deleted Items and Junk Email

Please empty your Deleted Items folder and Junk Email folder by right-clicking on each folder and choosing Empty Folder.

EmptyFolderMacempty_trash_windows

Update Login Name

Check to make sure that your user name on your computers and mobile devices is set to login@bu.edu and NOT as AD\login (where login is your BU login name).