try
            {
                MailMessage mail = new MailMessage();
                SmtpClient SmtpServer = new SmtpClient(" ZDE SMTP NA ENDORU");

                mail.From = new MailAddress("test@securityqsicr.cz");
                mail.To.Add("test2@securityqsicr.cz");
                mail.Subject = "Test Mail";
                mail.Body = "This is for testing SMTP mail";

                SmtpServer.Port = 465;
                SmtpServer.Credentials = new System.Net.NetworkCredential("jmeno", "mojeheslo");
                SmtpServer.EnableSsl = true;

                SmtpServer.Send(mail);
                MessageBox.Show("mail Send");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }