Mail 3.0 Help
Viewing Mail activity
Some actions might seem to take a long time, such as retrieving a message with a large attachment. You can view Mail activity to monitor progress.
Here are ways to view Mail activity:
To monitor Mail activity for incoming and outgoing messages, click the Mail Activity icon (looks like an up arrow) at the bottom of the sidebar to use the Mail Activity pane in the sidebar.
To monitor all Mail activity, such as updating RSS feeds, choose Window > Activity to open the Activity window.
To stop an action, click the Stop icon in the Activity window. It may take a few minutes for Mail to cancel an action that is in progress.