Simple Inbox Archiving Script for Apple Mail

gistfile1.scpt

-- See article here: http://daringfireball.net/2007/07/simple_inbox_sweeper
-- Minor modification to archive mail in sub-folders for each year
--  e.g. Archives/2011 for all mail archived in 2011
--  This mimics Thunderbird's "Archive" functionality

-- The following should be one long line:
set _description to "All unflagged, read messages in each IMAP account inbox will be moved to the “Archive” mailbox corresponding to that account. This action is not undoable."

tell application "Mail"
	display alert "Archive read messages from IMAP inboxes?" buttons {"Cancel", "Archive"} cancel button 1 message _description
	
	repeat with _acct in imap accounts
		set _acct_name to name of _acct
		set _inbox to _acct's mailbox "INBOX"
		set _year to year of (current date)
		try
			set _mailbox_name to "Archives/" & _year
			set _archive_box to _acct's mailbox _mailbox_name
		on error
			display alert "No “" & _mailbox_name & "” mailbox found for account “" & _acct_name & "”."
			return -- Stop the script
		end try
		
		-- Begin update for OS X 10.7.0
		set _msgs_to_move to (a reference to ¬
			(every message of _inbox ¬
				whose flagged status is false and read status is true))
		set _msg_list to contents of _msgs_to_move
		if (_msg_list's length > 0) then
			move _msgs_to_move to _archive_box
		end if
		-- End update for 10.7.0
		
	end repeat
end tell