Message "www.ui-deref.de. SSL" shows up every time I get an email from someone when they send a link or ask for a reply. The side bar in my email disappeared, can't change text colors, can't highlight anything,side bar went away,.

Perhaps a screen capture of the message because what you have said does not fit into any known category. You might want to explain in more detail. You are not limited to the subject to explain the issue as you have done and honestly it appears to conflate a number of issues in a tweet length statement.

Side bar? Is that the contacts information in the compose? or perhaps the folder pane in the main three pane view? Or have you just closed the spaces toolbar with calendar and address book etc.. For that click the arrow at the bottom of the screen