Ctrl-F does not behave as expected in the midst of an Outlook email.

This does a find most of the time in Windowsland, but if you want to search the contents of one of your emails and you try this Microsoft Outlook will treat it as an attempt to forward the email. A message will pop up with the "FW: " in the subject line, etc. Use F4 instead of Ctrl-F to do a search. Outside of a particular email when you are just looking at rows and rows of emails, Ctrl-F will forward whichever email is immediately in focus (highlighted) and F4 just does nothing. There is a search bar to use at the top of the list in these scenarios. Also note: The F4 trick works in an email you are reading not an email you are composing.