While trying to work out why a certain set of keystrokes did not work as expected in Outlook 2010 after them working for so long in Outlook 2003 and 2007 I w3as forced to go searching for a definitely list.
Found this information that might be useful to others – now to try them all 🙂
CTRL+1: Switch to Mail.
CTRL+2: Switch to Calendar.
CTRL+3: Switch to Contacts.
CTRL+4: Switch to Tasks.
CTRL+5: Switch to Notes.
CTRL+6: Switch to Folder List in Navigation Pane.
CTRL+7: Switch to Shortcuts.
CTRL+PERIOD: Switch to next message (with message open).
CTRL+COMMA: Switch to previous message (with message open).
CTRL+SHIFT+TAB or SHIFT+TAB: Move between the Navigation Pane, the main Outlook window, the Reading Pane, and the To-Do Bar.
CTRL+TAB: Move around message header lines in the Navigation Pane or an open message.
Arrow keys: Move around within the Navigation Pane.
ALT+B or ALT+LEFT ARROW: Go back to previous view in main Outlook window.
CTRL+Y: Go to a different folder.
F3 or CTRL+E: Go to the Search box.
ALT+UP ARROW or CTRL+COMMA or ALT+PAGE UP: In the Reading Pane, go to the previous message.
SPACEBAR: In the Reading Pane, page down through text.
SHIFT+SPACEBAR: In the Reading Pane, page up through text.
ALT+RIGHT ARROW: Go forward to next view in main Outlook window.
CTRL+SHIFT+I: Switch to Inbox.
CTRL+SHIFT+O: Switch to Outbox.
CTRL+K: Check names.
ALT+S: Send.
CTRL+R: Reply to a message.
CTRL+SHIFT+R: Reply all to a message.
CTRL+ALT+R: Reply with meeting request.
CTRL+F: Forward a message.
CTRL+ ALT+J: Mark a message as not junk.
CTRL+SHIFT+I: Display blocked external content (in a message).
CTRL+ SHIFT+S: Post to a folder.
CTRL+SHIFT+N: Apply Normal style.
CTRL+M or F9: Check for new messages.
UP ARROW: Go to the previous message.
DOWN ARROW: Go to the next message.
CTRL+N: Create a message (when in Mail).
CTRL+SHIFT+M: Create a message (from any Outlook view).
CTRL+O: Open a received message.
CTRL+SHIFT+D: Delete and Ignore a Conversation.
CTRL+SHIFT+B: Open the Address Book.
INSERT: Add a Quick Flag to an unopened message.
CTRL+SHIFT+G: Display the Flag for Follow Up dialog box.
CTRL+Q: Mark as read.
CTRL+U: Mark as unread.
CTRL+SHIFT+W: Open the Mail Tip in the selected message.
ALT+ENTER: Show the properties for the selected item.
CTRL+SHIFT+U: Create a multimedia message.
CTRL+SHIFT+T: Create a text message.
CTRL+ALT+M: Mark for Download.
CTRL+ALT+U: Clear Mark for Download.
F9: Send and Receive.
CTRL+B (when a Send/Receive is in progress): Display Send/Receive progress.
CTRL+SHIFT+D: Dial a new call.
F3 or CTRL+E: Find a contact or other item (Search).
F11: Enter a name in the Search Address Books box.
SHIFT+letter: In Table or List view of contacts, go to first contact that starts with a specific letter.
F5: Update a list of distribution list members.
CTRL+Y: Go to a different folder.
CTRL+SHIFT+B: Open the Address Book.
CTRL+SHIFT+F: Use Advanced Find.
CTRL+SHIFT+PERIOD: In an open contact, open the next contact listed.
F11: Find a contact.
ESC: Close a contact.
CTRL+SHIFT+X: Send a fax to the selected contact.
CTRL+N: Create a new appointment (when in Calendar).
CTRL+SHIFT+A: Create a new appointment (in any Outlook view).
CTRL+SHIFT+Q: Create a new meeting request.
CTRL+F: Forward an appointment or meeting.
CTRL+R: Reply to a meeting request with a message.
CTRL+SHIFT+R: Reply All to a meeting request with a message.
ALT+0: Show 10 days in the calendar.
ALT+1: Show 1 day in the calendar.
ALT+2: Show 2 days in the calendar.
ALT+3: Show 3 days in the calendar.
ALT+4: Show 4 days in the calendar.
ALT+5: Show 5 days in the calendar.
ALT+6: Show 6 days in the calendar.
ALT+7: Show 7 days in the calendar.
ALT+8: Show 8 days in the calendar.
ALT+9: Show 9 days in the calendar.
CTRL+G: Go to a date.
ALT+= or CTRL+ALT+4: Switch to Month view.
CTRL+RIGHT ARROW: Go to the next day.
ALT+DOWN ARROW: Go to the next week.
ALT+PAGE DOWN: Go to the next month.
CTRL+LEFT ARROW: Go to the previous day.
ALT+UP ARROW: Go to the previous week.
ALT+PAGE UP: Go to the previous month.
ALT+HOME: Go to the start of the week.
ALT+END: Go to the end of the week.
ALT+MINUS SIGN or CTRL+ALT+3: Switch to Full Week view.
CTRL+A: Select all contacts.
CTRL+F: Create a message with selected contact as subject.
CTRL+J: Create a Journal entry for the selected contact.
CTRL+N: Create a new contact (when in Contacts).
CTRL+SHIFT+C: Create a new contact (from any Outlook view).
CTRL+O: Open a contact form for the selected contact.
CTRL+SHIFT+L: Create a distribution list.
CTRL+P: Print.
CTRL+ALT+2: Switch to Work Week view.
CTRL+COMMA or CTRL+SHIFT+COMMA: Go to previous appointment.
CTRL+PERIOD or CTRL+SHIFT+PERIOD: Go to next appointment.
CTRL+E: Find a message or other item.
ESC: Clear the search results.
CTRL+ALT+A: Expand the search to include All Mail Items, All Calendar Items, or All Contact Items, depending on the module you are in.
CTRL+SHIFT+F: Use Advanced Find.
CTRL+SHIFT+P: Create a new Search Folder.
F4: Search for text within an open item.
CTRL+H: Find and replace text, symbols, or some formatting commands. Works in the Reading Pane on an open item.
CTRL+ALT+K: Expand search to include items from the current folder.
CTRL+ALT+Z: Expand search to include subfolders.