When we type beautiful emails with some (apparently) extra lines (line breaks) to make the message more readable sometimes. And when it reaches the user, Outlook removes the extra lines and make the email real ugly. Then Outlook displays this message on top of the message window: We removed extra line breaks from this message.
You can restore the extra lines by clicking on that message and choose Restore line breaks.
To permanently disable Outlook to remove the line breaks, you have to go to Outlook Options in File/Outlook Options, under Mail section. Scroll down and find Remove extra line breaks in plain text messages option under Message Format section.
Anand, the Architect 