Press F9, click the Send/Receive button in the toolbar, or click Actions > Send/Receive.
Press (]) or (.) to jump to the next unread message. ([) or (,) goes to the previous unread message. Use the arrow keys to move up and down in the list of all messages.
Press the Spacebar to move down a page. Press Backspace to move up a page.
To reply only to the sender of the message, click Reply in the toolbar, or press Ctrl+R.
To reply to the sender and all the other visible recipients of the message, click Reply to All or select the message and press Shift+Ctrl+R.
Select the message or messages you want to forward, then click Forward in the toolbar, or press Ctrl+F.
Double-click the message you want to view, or select it and press Enter or Ctrl+O.
Right-click a message and select Create Rule From Message. You can also create filters and virtual folders in the Tools menu.
Right-click a message and select Add Sender to Address Book. You can also right-click on any e-mail address to add it to your address book.