Granting a User the Ability to Send on Behalf of Another User

You can grant this type of access either as an administrator (using Active Directory Users and Computers) or as the mailbox owner (using Outlook). In many respects, this type of access is similar to granting a user access to a single folder. The user does not need an Outlook profile for the other mailbox. While accessing the folder, the user can only access folders for which the mailbox owner has granted them permission. However, the user can create and send mail using this type of access. For mail recipients, the From field of messages sent in this manner will read "Sent on behalf of mailbox owner by delegate user." The following figure demonstrates this approach.

User A creates meeting requests on behalf of User B without having to log on to User B's mailbox

Regardless of the method you use to grant Send on Behalf of permission, the Active Directory directory service records which users are granted access to a mailbox in this manner. Each mailbox object has an attribute named publicDelegates, which holds a list of the distinguished names of users who have been granted Send on Behalf of access to the mailbox.

To give someone access to another users mailbox using Active Directory Users and Computers, you must have the appropriate permissions to modify user objects in Active Directory. For more information about these permissions, see Microsoft Windows Help.

For detailed steps about how to use Active Directory Users and Computers to give a user the ability to send mail on behalf of another, see How to Use Active Directory Users and Computers to Give a User the Ability to Send Mail on Behalf of Another User.

For detailed steps about how to view another user's folder or send messages on another user's behalf if you have Send on Behalf of Access, see How to View Another User's Folder in Outlook If You Have Send on Behalf of Access.

For detailed steps about how to use Outlook to give a user the ability to send mail on your behalf, see How to Use Outlook to Give a User the Ability to Send Mail on Your Behalf.