after email deleting attachment file, error “The process cannot access the file because it is being used by another process.”

Question

I am doing an email form. Email has attachments and after attaching files email is sent. Next there is requirement to delete file from server. When I tried to get the file i

Answer 1

private void SendMessageGmail(MailMessage message)       
{
    SmtpClient client = new SmtpClient("smtp.gmail.com");
    client.EnableSsl = true;
    client.UseDefaultCredentials = false;
    NetworkCredential loginInfo = new NetworkCredential("myid", "mypassword");
    client.Credentials = loginInfo;
    client.Port = 587;
    client.Send(message);
    oatt.Dispose();
}