The Google Inc. (NASDAQ:GOOG) Gmail team has added a new feature to their e-mail service that allows you to quickly view your incoming mail without having to open it. The full message appears on the right pane, the message preview and actions appear in the middle pane, and the navigation is on the left frame.
To enable the feature, visit Gmail’s Lab page and enable “Preview Pane” by Peter B and Michael K. After that, you will notice a toggle button in the top right corner of the message list. The button allows you to switch between preview view and list view.
If you have more vertical space on your monitor, you can move the preview pane below the message list:
There is a 3 second delay between marking a conversation as read after previewing it. This can be changed in the General tab of Settings.