Before you upgrade, you may want to consider who or what server is used to host your IMAP email. It appears that the new Apple Mail in Leopard is initially incompatible with mDaemon’s IMAP service. If you upgrade your Mac, you will see all your folders and downloaded preview emails, but it will NOT pick-up any new email. If you do a clean install, it will download the folders within each account, but no messages appear in Mail.app.

On The Apple Discussion Forums:
http://discussions.apple.com/thread.jspa?messageID=5647673&tstart=0

Since I did not recognize the issue right away and upgraded all my Macs (as all looked well when I saw my emails in the upgraded machine), I have at least temporarily switched to using Mozilla’s Thunderbird. Thunderbird is FREE and seems to work just fine with mDaemon.

http://www.mozilla.com/en-US/thunderbird/

If I had known or seen the issue during the first machine upgrade, I would not have upgraded to Leopard. Of all things to go wrong, this is the worst case scenario for me!�

Philip Hayes is Phil is the CEO and a IT Solutions Consultant for Sirius Innovations, LLC. He has been a Mac user since 1990, when he bought his first LC for $2500 (monitor and printer not included). Although he is as proficient in Windows, he hands down prefers working on the Mac. He is currently operating off a Mac G5 tower and travels with a 17" Powerbook. He swears his new iPhone has made him 200% more productive than before.
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