I'd love to link to mail, but I'm using Thunderbird (actually Postbox), and there don't seem to be any easy ways to add links to it.  So, I'm actually considering using some emacs mailer, just for the ability to link to mails via imap.

1) Is anyone else doing this?  If so, is it worth the trouble?

2) Which mail subsystem would be most compatible and easiest to use?  MH?  Gnus?  And, would it be worth the trouble setting up on a mac?

3) I know there IS a way to link mails using Mail.app, but I prefer the more powerful filters in thunderbird/postbox.