After many, many years of Eudora I am at last moving to Mail.app. I was pushed by my new university employer computer folks, who don't support Eudora, but I had been thinking about making the move for some time -- what appeals to me most, of course, about Apple Mail is its integration with the other OS X Apple applications. But I have been surprised at how awkward the shift has been for me. I used the Eudora Mailbox Cleaner to make the import, which solved the irritating hangup of having it seem as if all imported messages were unread, but in return I have to Rebuild every single freaking mailbox one at a time. In fact, I think the need to Rebuild is the source of my greatest irritation/confusion -- as I am trying to clean up old messages and have moved large numbers from one place to another, there have been glitches, extremely slow transfers, and the irritating and often alarming habit that Mail has of at first telling you that the mailbox is empty. (Or, alternatively, of making messages that I had sent to another mailbox reappear -- often in both places, now in duplicate.) With Eudora, whatever its unpretty text-based clunkiness, the mailboxes were mailboxes and the user, it seems to me, had more control. Even in imap, the mail listings were pretty stable, even when it had to re-download the message from the server. (I have often had one account in imap and another in pop.) Speaking of being in more control, one of the things I dislike about Mail is the inability to create another Sent folder without actually creating another account (or what Eudora calls "personalities.") When I imported my Eudora messages, the old "Out" box was lumped in with all the received mail -- so that rather than showing to whom it was sent, it noted from whom, which of course was me, me, me, me, me etc., etc. Now when I put it in my sent folder, it dumped it in with the sent from my new account. Now of course Eudora only has one Out box, into which all sent messages go, but Eudora doesn't get grumpy or pokey the way Mail does with large mailboxes. That is, I could keep all 1,500 sent mails in my Out-box without its needing to be Rebuilt, or doing that weird thing where it appears to be showing a clock (or is it a circle graph? what is it for?) to the right of the mailbox's name as it rediscovers what is in there. Our tech folks recommend using Thunderbird, but then, undoubtedly our tech folks are mostly PC-oriented. I would like to stay with Mail for the reasons I mentioned above -- that is, its easy integration with Safari, iPhoto, PhotoBooth , etc., etc. I've been hunting around for plugins/helper applications that might address some of my complaints, but I haven't seen anything so far. If anyone here has any thoughts, comments, etc., I would be grateful.