Today, I turned on my Mac, opened Mail and it asked me to "add account". Without any reasons, all my mailboxes disappeared! Like if I was installing a new Mail app. I have my mails and mailboxes on Library > Mail > V2, so how can I restore things exactly as they were? PS. - I don't have Time Machine installed. - I have 10 accounts, so importing each .mbox file is insane. Is there other way?