I want to switch my OS to Lion but need an email client compatible with Eudora 6.2.3.  I tried Eudora Mailbox Cleaner to move it to Apple's MAIL and it transferred my folders but none of the content in the folders.  In other words, all my hundreds of filed emails were left behind in the move.   I need help. Please advise.  I'll be happy to consider another email client besides MAIL if it will accept all the addresses and full folders from Eudora.   Thanks in...