1.Open the Active Directory Users And Computers management console.
2.Select the appropriate user account object.
3.Right-click the user account object, and select Properties from the shortcut menu.
4.Click the E-Mail Addresses tab.
5.Click the New button.
6.The New E-Mail Address dialog box opens.
7.Choose the e-mail address type to create and then click OK.
8.Enter the e-mail address.
9.Click OK.
10.On the E-Mail Addresses tab, the primary e-mail address is displayed in bold font. The alias address is displayed in a non-bold, standard font.

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