I started with Eudora files and converted them to Mac Mail files. Now I have the Eudora files, which I can easily locate onto an external disk because they're flat files.

But I also have that decade+ of converted mail taking up a huge amount of room on my Mac.

I don't want to delete the Mac Mail files, but I want to move them off of my computer and onto an external disk. They are in mailboxes since the Eudora files were sorted into mailboxes.

1 Answer 1


There are a number of existing questions/answers that address this very topic:

These posts should get you on the right track to migrating your mail over to the external disk.

Basically, what you need to do is either copy/move the mbox file to the external drive or use the Export function in the Mail app to export mail to a mailbox located on the external drive.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .