var message = new MailMessage();
message.To.Add(new MailAddress("myemail@example.com"));
message.From = new MailAddress(_Settings.MailServer.UserName);
message.Subject = subject;
message.IsBodyHtml = true;

var htmlBody = AlternateView.CreateAlternateViewFromString(
            body, Encoding.UTF8, "text/html");

message.AlternateViews.Add(htmlBody);

using (var smtp = new SmtpClient())
{
     var credential = new NetworkCredential
     {
          UserName = _Settings.MailServer.UserName,
          Password = _Settings.MailServer.Password
     };
     smtp.Credentials = credential;
     smtp.Host = _Settings.MailServer.IPAddress;
     smtp.Port = _Settings.MailServer.Port;
     smtp.EnableSsl = _Settings.MailServer.EnableSSL;
     smtp.Send(message);
}