I was experiencing with a problem that all my outlook categories tag are lost
(ie. all emails that I assigned red categories are reset) after the mail
provider changed something on their end.  I have noticed that emails that I
have read (show as read in outlook as well) do not have the organize option
available when I perform a right click.  However, the organize option will
become available after I reopened the email.  Thus, I assume the email has
somehow changed to unread but shown as read in outlook(?)  My master list is
still here, just that each email that I have categorize have lost it's
assigned category.  Any help that can  retrieve my lost categories will be
appreciated.  

Thank you.