I am unable to delete email from my Outlook inbox. The message has the appropriate line through it and right-click gives an "undelete" option, but the email stays in my inbox indefinitely. The account is impap (Gmail). Even more curious, if I go to a email client (iPhone), the deletions show there, but not in Outlook and not if I go to the server on the web. And, if I delete the email on the server, it is immediately reflected in Outlook.