i have a load of rules set up in mail.app, which filter my incoming mail into folders depending on who it's from. so i'll have a "friends" folder with a load of subdirectories for different folks, a "work" folder with a load of subdirectories for different clients and other folders for things like correspondence with various other organisations or companies. all very well, except that i have to manually add all the emails i've sent into the appropriate folders as mail's rules only apply to incoming mail and not what you're sending.
the other day i thought i'd sussed out the answer to this by using "smart mailboxes" to sort all my mail on the fly [ie. putting everything i'd received from
XXX@YYY.com and everything i'd sent to
XXX@YYY.com in the same smart mailbox]. just one problem tho' - mail won't let me organise my smart mailboxes into sub-folders, so if i want to use them i'd just end up with dozens of smart mailboxes listed in mail.app's window, instead of being able to categorise them in folders for "friends", "work", "payments" etc as i do now.
anyone know of any way round this limitation of smart mailboxes? i don't mind doing a bit of command line shenanigans, if there's some 'hack' which let's you organise them in a more friendly way.