Recently we resolved HTML and Plain Text email issues on my server and it has been working great. I have noticed now, though, that the plain text notification emails do not have line breaks/word wrap working.
Word wrap is enabled by default and the default email format is set to plain text. Word wrap/line breaks work in all plain text mails from the Communicate Form and some freeform forms I use, so I’m not sure why these email notifications do not retain them.