Does Outlook support a paste option called “Merge formatting” like MS Word does? That should fix the problem if it exists. Outlook seems to accept all kind of formatting, similar to Word, and I’ve noticed various interesting results when copying stuff from formatted websites.
I think the problem is the when the browser does its default copy, for completeness it copies the text with all formatting included. I guess this might be useful in some cases, in case you want a complete copy with the appearance.
We’re using this default behavior, and when an app accepts it, it looks annoying. If you paste into a less formatting heavy program like WordPad, it doesn’t happen.
I hope that clears thing up! If there’s no option to merge formatting in Outlook, we’ll see what we can do.