I use Mail.app for email.

I use the @ mark for actions and the + mark for reference. I only have the below listed top level folders, every email goes into a project folder or complete. 'In' stays clean. I add three non standard @ folders because it adds to the system. Clients are first priority for me and I want them to be at the top level.

In Mail I use the following:

@inquiry: waiting for @inquiry: response needed @projects Folder name: next action JAS livestock standards: write comments @waiting for Folder name: next action @read & review Folder name: next action @someday, maybe @bulk (all newsletters, and would be spam) +Complete +Faxes (pdfs of all faxes received on an orange imac and automatically emailed to me) +General Reference (completed projects filed alphabetically) +Personal +Registrations (software etc. registration emails) +Scans (scans of files I have emailed to myself) +Tel Records (my secretary emails me a record of all incoming calls daily)

I would love to be able to have a script that would export the folder names and the from, subject, date of the messages in the folders. I can get a list of the folder names by using foldertolist http://www.torellasoft.com and exporting them to excel. But it is only the mbox names in the mail folder. I would like to have the folder name, and the emails in each one because I would like to review it outside of mail.app