MailMessage mail = new MailMessage();
mail.To = “收件人”;
mail.From ="發件人";
mail.Subject = "標題";
mail.Body = "內容";
mail.BodyFormat = MailFormat.Html;
mail.BodyEncoding = System.Text.Encoding.UTF8;//這句話是轉換的關鍵
System.Web.Mail.SmtpMail.SmtpServer = "";
System.Web.Mail.SmtpMail.Send(mail);