Send Mail From Gmail Using Vb.net Program
 Try            Dim  mail As  MailMessage  = New  MailMessage ()            mail.To.Add( "yyyy@gmail.com" )                mail.From = New  MailAddress ( "xxxx@gmail.com" )            mail.Subject = "Email using Gmail"             Dim  Body As  String  = "Sending mail using Gmail's SMTP"            mail.Body = Body             mail.IsBodyHtml = True            Dim  smtp As  SmtpClient  = New  SmtpClient ()            smtp.Host = "smtp.gmail.com"                smtp.Credentials = New  System.Net. NetworkCredential ( "xxxx@gmail.com" , "xxxx" )            smtp.EnableSsl = True            smtp.Port = 587            smtp.EnableSsl = True            smtp.Send(mail)            Catch  ex As  Exception                MessageBox .Show(ex.Message)            End  Try            End