

You should copy this folder including all subfolders and files inside to the Windows PC and use it as the Source Folder for the Mac Mail to Outlook Converter.

The folder called Mailboxes is the main storage for your emails. POP accounts and IMAP accounts are named with prefix POP- and IMAP- respectively. Each account folder contains multiple sub-folders for your Mac Mail folders such as Inbox, Sent Items etc.

Usually this directory is called Mail and contains multiple sub-folders named the same way as your email accounts. This will open up the correct directory where your Mac Mail stores emails.
