Thunderbird – Reclaim Your Inbox:
Thunderbird gives you a faster, safer, and more productive email experience. We designed Thunderbird to prevent viruses and to stop junk mail so you can get back to reading your mail. Read on to find out more about the reasons why you should use Thunderbird as your mail client and RSS reader.
The first test will be if the bright sparks at Mozilla have figured out that Apple’s Mail.app uses old school mbox files so migration should be a snap. Discouragement will kick in if I find the situation unchanged since v0.9.
Apparently not. This is enough of a show-stopper for me to go no further: ideally, TBird would read Apple’s mbox files natively. Granted, Apple uses some weird additional directory level for it’s mailboxes, but they’re still old school mobx files, for all that.
white:~/Library/Mail/Mailboxes
paul$ file mac-users.mbox/mbox mac-users.mbox/mbox: ASCII mail text