275 Views 1 Reply Latest reply: Jan 8, 2007 4:04 PM by David Gimeno Gost
Mail has a bug that causes ~/Library/Mail/Mailboxes to sometimes be a file instead of a folder, thus causing the problem you’re experiencing.
Verify/repair the startup disk (not just permissions), as described here:
The Repair functions of Disk Utility: what's it all about?
After having fixed all filesystem issues, if any, proceed as follows:
1. Quit Mail if it’s running.
2. In the Finder, go to ~/Library/Mail/.
3. Locate Mailboxes. If it’s a file instead of a folder, move it to the Trash.
Note: For those not familiarized with the ~/ notation, it refers to the user’s home folder, i.e. ~/Library is the Library folder within the user’s home folder.