I am using mac mail 6.3. I have a mail account and on the mail server, I have email rules which drop the mails into subfolders so that its all automatically sorted nicely for me when I connect with imap and collect them. However, when I am checking the mail with imap, all the mails are marked as unread and I need to mark them all as read. Is there a rule in mac mail that I can apply which says something like... "mark all incoming mail for X email account as read". Currently it only works for inbox and as I have everything going to subfolders already, its not marking anything as read.