Pressing "Ctrl+F" would forward the message. Then, is there a keyboard shortcut for finding text in an email? (Think Adobe PDF Ctrl+F or Word Ctrl+F)
EDIT: To search within an e-mail,
ALT+HFD will bring up the Find dialog without having to add it to the Quick Access Toolbar.
Back when I thought you were asking about searching through e-mail items in Outlook:
From your Inbox just hit
Ctrl+E. This will focus the Instant Search box for searching the contents of e-mail. Alternately,
Ctrl+Alt+A will focus the search box for Search All Mail Items.