Since using Yahoo! IMAP in the new Mail, when importing my Yahoo! account, I have a duplicate folder labelled "Yahoo!" with essentially the same folders: inbox, sent, drafts, bulk, trash, etc. I'd rather not have that duplicate folder and would prefer to have everything handled in the Mailboxes portion of Mail. I have tried deleting the Yahoo! folder, but an error message comes up preventing me from doing that. Another problem when I send any messages from the Yahoo! account, is it goes to the "Sent" folder in the Yahoo! portion, as opposed to the Sent folder of the Mailboxes portion. I learned how to fix this behavior in my Gmail accounts, but I'm not sure how to fix this problem with Yahoo! If anyone has any tips, it'd be much appreciated. Thanks!