The Mail.Receivers collection contains all message receivers. The collection can be used to determine the value of a specific receiver item, or to iterate through the collection and retrieve a list of all receivers. See the Collection Object for standard collection properties and methods.
Item = Mail.Receivers(key|index)
Returns a Variant of type String
The Receivers collection contains the list of email address that will actually receive the mail message, whereas the Tos and CCs collection contains the list of receivers displayed in the mail message.
In the following example, a receiver is added on the Mail_OnStartRender event
Sub Mail_OnStartRender
Mail.Receivers.Add "TheBoss","bigboss@emilltest.com"
Mail.CCs.Add "TheBoss","bigboss@emilltest.com"
End Sub