OK, thanks for bearing with us - we've got a solution to this error message that you have been experiencing with Outlook 2007 and Outlook 2010.
This is fixed for version 1.0.6 of Yahoo IMAP Connector.
To get the fix, please exit Yahoo IMAP Connector, and download and install the latest version from http://www.bravurasoftware.com/yahoo-im ... oadYIC.htm
You can also get the fix by exiting Yahoo IMAP Connector, and selecting Start Menu > All Programs > Yahoo IMAP Connector > Get Updates
The fix has worked well for us in our testing but if anyone is still encountering this error message after updating to the latest version, please let us know by posting to this forum, or by email at email@example.com