ASP.NET jmial 电子邮件的发送

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        sendMail("陈建勇", "chenjianyong@126.com", "chen@126.com", "发个邮件试试", "你能收到，说明是你自己发的");
    }
   /// <summary>
    /// 发送电子邮件 引用jmail 组件
    /// </summary>
    /// <param name="sender"> 发件人 </param>
    /// <param name="senderMail"> 发件人电子邮件 </param>
    /// <param name="receiver"> 收件人电子邮件 </param>
    /// <param name="subject">主题 </param>
    /// <param name="content"> 邮件内容 </param>
     public void sendMail(string sender, string senderMail, string receiver, string subject, string content)
    {
        jmail.MessageClass jmMessage = new jmail.MessageClass();
        // 设置字符集
        jmMessage.Charset = "gb2312";
        //设置邮件内容形式
        jmMessage.ContentType = "text/html";
        // 发件人邮箱地址
        jmMessage.from = senderMail;
        // 发件人姓名
        jmMessage.fromName = sender;
        // 设置主题
        jmMessage.Subject = subject;
        // 设置内容