sending Emails to the gmail ..
i am using below code ..
  public static void SendEmail(string emailbody)
        {
            // Specify the from and to email address
            // Specify the email body
            mailMessage.Body = emailbody;
            // Specify the email Subject
            mailMessage.Subject = "Exception";
            // Specify the SMTP server name and post number
            SmtpClient smtpClient = new SmtpClient("smtp.gmail.com", 587);
            // Specify your gmail address and password
            smtpClient.Credentials = new System.Net.NetworkCredential()
            {
                Password = "*******"// my current password
            };
           // smtpClient.EnableSsl = true;
           // SmtpServer.EnableSsl = true;
            // Finall send the email message using Send() method
            smtpClient.EnableSsl = true;
            smtpClient.Send(mailMessage);
        }
 it shows the error  {"The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication 
Required. Learn more at"}