Why reminisce on old work emails? I can't think of anything less interesting... But if you wanted to ex-filtrate that data (like some sort of spy) your best be

Why reminisce on old work emails? I can't think of anything less interesting... But if you wanted to ex-filtrate that data (like some sort of spy) your best bet could be to connect to your email remotely via IMAP and replicate all the messages off site. This is probably much less traceable than physically copying data on your work computer...