how remove the double spaced lines in email?

Answer 1

The line spacing is controlled by how many times you hit the spacebar.

Answer 2

You need to forward it to be able to edit it.  This doesn't mean you actually have to forward it to someone, but you do need to hit the forward or reply button.  You can always forward it to yourself.  

Answer 3

how do we remove the doulbled spaced lines in our emaill in box/?