Weening myself from corporate Exchange Servers, I'm trying to get IMAP working with Outlook 2007. I have two issues:
1) Folder sync doesn't seem to work all of the time.
2) Mail send fails with this error: "Task 'email@example.com' - Sending' reported error (0x80070057) : 'Could not complete the operation. One or more parameter values are not valid."
However, when I click Outlook's "Test account settings..." button. Send and receive work fine; I receive the sent "Microsoft Office Outloot Test Message" just fine!
Any suggestions on what to check?