sending Email using .net with proxy in desktop application

[trivedimca2005]

I am using below code for sending Email using .net.

Its not working on client machine. My server IP is:- 192.168.10.10 and also uses proxy and user-name and password for proxy settings are user-name:- user and password:-user.

Where I have to specify this proxy settings in my below code.

 Dim message As New MailMessage()
                       message.From = New MailAddress(txtFrom.Text.Trim())
 
         message.To.Add(New MailAddress("[e-mail]"))
                     message.Body = txtMessage.Text
 
            message.Subject = txtSubject.Text.Trim()
 
           message.Body = txtMessage.Text 
 
            message.IsBodyHtml = True
 
 
            If txtServer.Text.Trim() = "" Then
                MessageBox.Show("PLEASE ENTER SERVER NAME OR SERVER IP")
                Exit Sub
            Else
                Dim client As New SmtpClient(txtServer.Text.Trim())
                            client.Send(message)
            End If
 
           MessageBox.Show("MAIL SENT SUCCESSFULLY")
 
 

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