I use Apple Mail 4.6 in Mac OSX 10.6.8 on a MacBook Pro. My IT department recently "upgraded" the mail server to owa2007. Since then, the 'Sent' folder no longer shows the new sent messages. The messages ARE stored correctly on the server in the 'Sent Items' folder. I have tried several settings for Internal Server and External Server (including the ones IT suggested, which make Mail stop sending or receiving messages altogether).
Mail on my iPad adjusted to the upgrade and works correctly. Interestingly, messages sent from my iPad DO show up in 'Sent' on my MacBook Pro. However, messages sent from the web based interface or from my MacBook Pro do NOT show up on my MacBook Pro.
Other threads have suggested selecting a mailbox and going to Mailbox > Use This Mailbox For > Sent. However, when I go to Mailbox > Use This Mailbox For, all the options are grayed out.
My IT office has been unresponsive, only reiterating that I should use the new server settings, which don't work. Please help.