Choose a folder or create a new folder, then click Choose.
#HOW TO ARCHIVE MAC MAIL EMAILS TO AN EXTERNAL DRIVE MAC OS#
Select the format – Mac OS Extended (HFS+), MS-DOS (FAT32), or exFAT – then name the drive. In the Mail app on your Mac, select one or more mailboxes, then choose Mailbox > Export Mailbox.
If you do not need to mount your drive on Windows, you could use HFS+. Copy, Save, Or Backup Your Thunderbird Profile.
Here you will get a list of different email file formats along. Click on Find tab in this new window in order to detect the email files. Click on Scan File and another window where more options are available will open. FAT32 limits individual file sizes to 4GB. Start the MailPro+ application and launch it to find the email files in the machine. This is likely due to the external HDD being formatted with the FAT32 filesystem.