Sending Email From Your Gmail Account in vb.net

Use these namespace and add function to your event on which you want to send email.
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Imports System.Web
Imports System.Net
Imports System.Net.Mail

Public Function sndmail()
Try

 Dim client As New SmtpClient()
               Dim sendTo As New MailAddress("email of other person")
                Dim from As MailAddress = New MailAddress("youremail")
                Dim message As New MailMessage(from, sendTo)
                message.IsBodyHtml = True
                message.Subject = "Mail subject"
                message.IsBodyHtml = True
                Dim st As String = "Your Mail Body "              
                message.Body = st
                message.IsBodyHtml = True
                Dim basicAuthenticationInfo As New System.Net.NetworkCredential("yourfullemail", "password")
                client.Host = "smtp.gmail.com"
                client.UseDefaultCredentials = False
                client.Credentials = basicAuthenticationInfo
                client.EnableSsl = True
                client.Send(message)

         Catch ex As Exception
            Response.Write("")
        End Try
End Function

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