注册jmail

    windows --> 运行 --> cmd --> cd jmail目录 --> regsvr32 jmail.dll --> 注册成功

public static void JMail(string ToEmail, string UserName, string ValuationType, string Body, string EmailAccount, string EmailPwd, string EmailServer)

        {

            Message Jmail = new Message();

            DateTime t = DateTime.Now;

            var Subject = UserName  ;//邮件标题

             //添加收件人

            var mail = ToEmail.Split(';').ToArray();

            for (int i = 0; i < mail.Length; i++)

            {

                 Jmail.AddRecipient(mail[i], "", "");

            }

            //Silent属性：如果设置为true,JMail不会抛出例外错误.

            Jmail.Silent = true;

            //Jmail创建的日志，前提loging属性设置为true

            Jmail.Logging = true;

            //字符集，缺省为"US-ASCII"

            Jmail.Charset = "GB2312";

            //信件的contentype. 缺省是"text/plain" 字符串如果你以HTML格式发送邮件, 改为"text/html"即可。

            Jmail.ContentType = "text/html";

            //发件人邮件用户名

            Jmail.From = EmailAccount;

            Jmail.FromName = UserName;

            Jmail.ReplyTo = EmailAccount;

            //发件人邮件用户名

            Jmail.MailServerUserName = EmailAccount;

            //发件人邮件密码

            Jmail.MailServerPassWord = EmailPwd;

            //设置邮件标题

            Jmail.Subject = Subject;

            ////邮件添加附件(增加附件可再加一条Jmail.AddAttachment( "c:\\test.jpg",true,null);就可以搞定了。

            ////增加附件后要把上面的Jmail.ContentType="text/html";删掉，否则会在邮件里出现乱码。

            //Jmail.AddAttachment("c:\\test.jpg", true, null);

            //邮件内容

            Jmail.Body = Body;

            //设置SMTP服务器

            var s = Jmail.Send(EmailServer, false);

            //关闭Jmail连接

            Jmail.Close();

        }