Hotkeys:
| Check mail | m | 
| Check All Mail (includes all POP accounts) | M | 
| Skip to oldest unread message | Ctrl+Shift+End | 
| Mark As Read | k | 
| Mark As Unread | K | 
| Flag | l (lowercase L)  | 
| Clear Flag | L | 
| Delete Item | Delete (your “delete” key) | 
| Reply | r | 
| Reply All | a | 
| Forward message | f | 
| p | |
| New Message | n | 
| Save Draft | Ctrl+s | 
| Send Message | Ctrl+Enter | 
| Turn Reading Pane on and off | v | 
| New Folder | Ctrl+E | 
| Move message to a folder | d | 
| Put message in one of your first 9 folders | 1-9 (For example, type 2 for 2nd folder; doesn't work beyond 9) | 
| Find a word or phrase in a message | Ctrl+f | 
| Close Current Tab | Ctrl+\ | 
| Navigate through tabs—right to left motion | Ctrl+[ | 
| Navigate through tabs—left to right motion | Ctrl+] | 
| Open message(s) in its own tab | Enter (select one message at a time) | 
| Edit contact info | Enter (select a contact first, in Contacts) | 
| Expand window to maximum height | F11 | 
| Next message (in message tab) | Ctrl+.  (Ctrl with period)  | 
| Previous message (in message tab) | Ctrl+,  (Ctrl with comma)  | 
| Close read-message tab | Esc | 
| Start a new chat | c | 
| Search box | s | 
