Hello. My .mac account has expired but, on startup, Mail insists on trying to retrieve email from the .mac account - a dialog box pops up and it asks for a password. This happens three times and I have to click 'Cancel' each time. I am currently using Mail to receive email in a completely different account and I'd like to delete the .mac mail mailbox. Can anyone help? The 'Delete Mailbox' option can't be selected for some reason.