I truly don’t like Outlook, the program that runs on your computer, which started as a mail client, and now wants to do everything, and does it badly. I use it in a Windows VDI for work purposes, because there is no other practical choice. One of the things—amongst the many—that irks me about it is the “Remove extra line breaks in plain text messages” option enabled by default. That’s because—yes, you guessed it—I compose my emails in plain text.