Add an attachment which will appear to the user as a separate file. (It is not referred to in the email itself.)
[Visual Basic] Public Sub AddMixedAttachment( _ ByVal fileattachment As FileAttachment _ ) [C#] public void AddMixedAttachment( FileAttachment fileattachment ); [C++] public: void AddMixedAttachment( FileAttachment* fileattachment ); [JScript] public function AddMixedAttachment( FileAttachment fileattachment );