Understanding where things go, setting up the workflow

I was wondering how to set up this workflow:

1. Mail arrives (or is sent)
2. I select "Action" and make the appropriate classifications
3. The mail is stored in the Inbox under "@Action"
4. When the task is Completed the mail is automatically moved to the Reference folder.

This is because I have limited space on in my mail box due to corporate restrictions, can't store all the old mail there as tasks are completed.

Thanks in advance!
 
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