Before you can act as a proxy for someone, that person must give you proxy rights in his or her Proxy Access List in Options. The amount of access you have depends on the rights you are given.
If you haven’t already done so, add the user name of the person to your Proxy List.
For more information, see Adding and Removing Users in Your Proxy List.
On the main WebAccess page or Calendar page, click Proxy on the toolbar.
Click the name of the person whose Mailbox you want to access.
When you have finished your work in the other person’s Mailbox, click Logout.