Sometimes I receive emails with indent lines on the left. Usually this happens when this email has been forwarded around a lot. When I forward this email myself, I try to clean it up. But when I get to a section with these indent lines, nothing I do will remove them. Not delete, not remove indent, not the eraser, nothing. The only thing I can do is cut the content I want to keep, delete the entire section with the indent lines, then paste the cut section back into a non-indented section of my email.
I'm using using Outlook 2010, but this problem has been around for a long time. I was just hoping that there would finally be a solution.