I'm looking for any possible solutions for migrating about eleven gigs of email from an Outlook PST to Outlook.com. There are hundreds (possibly thousands) of folders and subfolders that need to be migrated, and dragging and dropping folders from the PST to the account via IMAP just doesn't work for anything but the smallest folders. Connecting via MAPI (native in Outlook 2013 for Outlook.com/Hotmail/Windows Live) doesn't let me copy folders at all.
How can I do this? It's business critical for my customer, so I really need to figure something out that won't take weeks to accomplish. Thanks!