How do I undo double-underlining?

[flowers4ever!]

In Microsoft Outlook, I was typing a message when all of a sudden, my words
were double-underlined. I knew I had done something with my fingers - they
accidently pressed some keys. I don't know how do undo it, can someone help
me?

 

[Suzanne S. Barnhill]

Select the text and press Ctrl+Spacebar.

 

[Terry Farrell]

To add to Suzanne's solution, you probably pressed Ctrl+Shift+D which is the
double underline shortcut. It is a toggle command, so selecting the text
(Ctrl+A) and pressing Ctrl+Shift+D will toggle it off without removing any
other direct formatting.