Response to IMAP email sync issues with GMAIL, Yahoo, etc.
Issue: emails reappear if deleting email from Sense tab.
If you use the Inbox's menu function to delete the message the reappearing-email issue does not occur, however the message may still not be deleted from your email account (check via your browser). This is due to the IMAP connection configuration.
This issue does not happen with Hotmail due to the way it interacts with Windows Live to do the sync.
More on setting up GMAIL for IMAP via Outlook Mobile here:
http://www.microsoft.com/windowsmobi...ok-mobile.mspx
Hope this helps everyone. If others have more info post up...