Offline Mail Message Browser?
Let's say I have an e-mail account that I do not use anymore and will lose online access to it in a few months. I know I can Export all the messages and subfolders in mbox format from OS X Mail.app, and I can peruse through the messages through the Finder. I also know I could simply open a free Outl##k or Gm##l account and Import the messages back online. But is there a way to search and read through them in a mail client type interface without re-importing them back online?
Or, is there a way to create a Smart Folder or Smart Search to contain activities to within a virtual mailbox directory?