Hello @KristyS ,
If you're copying the text from an external source, then it's typically best to make sure formatting is cleared beforehand. While pasting-without-formatting (CTRL SHIFT V on PC, CMD SHIFT V on Mac) typically works, pasting into a generic text editor like Notepad is the best practice to ensure coded formatting is purged from the text.
As far as Outlook hyphenating your text, that's how Outlook works at times and may require you to manually adjust its settings. See this closed Community post's Top Answers for more info.
See also:
Display Issues – Why does my email look different when received?
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