How to Change Delegate Access Permissions for your Email and Calendar
Changing a Delegate’s Permissions
Select the File tab.
Select Account Settings.
Select Delegate Access.
Select the name of the delegate for whom you want to change permissions.
Note: If you want to remove all Delegate Access permissions, select Remove and skip to step 8.
In the Delegate Permissions dialog box, select the appropriate level of access for each category from the provided dropdown list.
To send a message to notify the delegate of the changed permissions, check Automatically send a message to delegate summarizing these permissions.
If you want, check Delegate can see my private items.
Important: This setting affects all Exchange folders. This includes all Mail, Contacts, Calendar, Tasks, Notes, and Journal folders. There is no way to grant access to private items in only specified folders.
NOTE: By default, the delegate is granted Editor (can read, create, and modify items) permission to your Calendar folder. When the delegate responds to a meeting on your behalf, it is automatically added to your Calendar folder.