When I first switched to OS X several years ago, I quickly latched on to Mailsmith (despite its rather exorbitant price tag) because it simply had no comparable peer on the Mac. It was easily the most powerful email client available and remained so for some time. Unfortunately, it had gone years without updates, and lack of support for Intel Macs and IMAP service eventually rendered it a has-been. That meant for folks like me who now have iPhones and are using MobileMe or other IMAP services, Mailsmith is dead to us. I've since moved on to Postbox and while I had remained hopeful that Mailsmith would win me back, this release and its continuing lack of IMAP support has dashed those hopes.