How to get confirmation message when i send pdf report as mail

Hi all i am using following code to generate pdf report from rdlc and sending mail,
Problem is i am unable to Confirmation message.How can i create it.Urgent.
 








































 
 
 
 
RegisNum = Trim(LblItcRegNum.Text)
 
 
 
 

Private Sub BTN_ITCLETMAIL_Click(Go to the complete details ...