DisplaySelectNamesDialog Method
Displays the Select Names dialog box, in which the user can add addresses to the To:, Cc:, and Bcc: lines in the active, unsent e-mail message. This method is available only if you are using Word as your e-mail editor.
expression.DisplaySelectNamesDialog
expression Required. An expression that returns a MailMessage object.
Example
This example displays the Select Names dialog box for the active e-mail message.
Application.MailMessage.DisplaySelectNamesDialog