You can select recipients to send e-mail on behalf of a
mailbox-enabled user. For example, you may want to enable an
administrative assistant to send e-mail to members of a department,
on behalf of the department manager.
On the Start menu, point to
Programs, point to Administrative Tools, and then
click Active Directory Users and Computers.
In the console tree, expand the Windows 2000 domain.
Double-click Users, or double-click the node that contains
the recipient information you want to modify.
In the details pane, double-click the recipient whose sending
privileges you want to delegate.
On the Exchange General tab, click Delivery
Options.
In the Delivery Options dialog box, click
Add.
In the Select Recipient dialog box, under Name,
select the recipient you want to send e-mail on behalf of the
mailbox-enabled user, and then click Add. Repeat this step
for each recipient.