Keyboard Shortcuts in Outlook Express

Alt+Left Arrow	Selects the next message up in the headers list.
Alt+Right Arrow	Selects the next message down in the headers list.
F5	Refreshes current view.
Tab	Cycles through the folder view, headers view and preview pane etc.
Ctrl+A	Select all.
Ctrl+F	Forwards the selected message.
Ctrl+I	Takes you to the Inbox.
Ctrl+L	Toggle the folders view on or off.
Ctrl+N	Composes a new message.
Ctrl+O	Brings up the "Open" dialog box.
Ctrl+Q	Mark selected header(s) as read.
Ctrl+R	Replies to the selected message.
Ctrl+Shift+B	Opens the Address Book.
Ctrl+Shift+M	Downloads all.
Ctrl+Shift+R	Replies to the author and group of the selected message.
Backspace	Back, or up one level when using folders.