How to Find Mac Mail Mailboxes Location?

Question: I have followed all the instructions on how to archive and save Mac Mail folders/emails and have saved one folder to my USB to test it out. When I plug the USB drive into the PC and run the software, it says it can’t find any files ending in .mbox or .mbx even though I can see folders ending with that suffix. Can you tell me what the problem is? What if my Mac Mail application does not have an option to Archive Mailbox? What should I do if my Mac OS X Mail application do not allow me to archive mailboxes?

Answer: Looks that your Mac Mail version stores emails in *.emlx files and don’t allow to pack them to the mailbox format. So you have nothing to do with email archiving option. You have to find the proper mailbox location.

Note: Mac Mail may create several similar folders but the proper one is that which stores files with *.emlx extension. The message store location depending on Mac Mail application version and edition.

How to Find and Open the Folder Where Mac Mail Stores Emails

Do the following to find and open the folder where Mac OS X Mail v2, v3, v4 and above keeps your messages:
  1. Open a new Finder window
  2. Go to your home directory using the Home toolbar button or select Go | Home from the main menu
  3. Open the Library/Mail/Mailboxes directory

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

The folder called Mailboxes is the main storage for your emails. 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.

Take the following steps to open the folder where Mac OS X Mail v1 keeps your messages: 
  1. Open Mac OS Finder application
  2. From the main menu select “Go” item
  3. Choose “Go to Folder…” menu item (You can also press Command-Shift-G).
  4. Type in “~/Library/Mail/V2” (for Mac OS X Mail 5-8)
    or “~/Library/Mail/V3” (for Mac OS X Mail)

This indicating the location of the lication of the Mac Mail v1.0 mailbox. You have to use this folder as the source for the conversion.