jmail接收邮件报错？This function is not included in this version of jmail.该如何解决

jmail接收邮件报错？This function is not included in this version of jmail.
我用JMail发邮件成功，收邮件就报错了This function is not included in this version of jmail.代码：jpop.Connect("HelloWorldServer@163.com", ******, "pop.163.com", 110);
请大侠帮帮忙，急死我了

[解决办法]
jmail.Message Jmail = new jmail.Message();
DateTime t = DateTime.Now;
String Subject = "";
String body = "";
String FromEmail = "";
String ToEmail = "";
Jmail.Charset = "GB2312";
Jmail.ContentType = "text/html";
Jmail.AddRecipient(ToEmail, "", "");
Jmail.From = FromEmail;
Jmail.MailServerUserName = "";
Jmail.MailServerPassWord = "";
Jmail.Subject = Subject;
Jmail.ContentType="text/html";
Jmail.Body = body + t.ToString();
Jmail.Send("", false);
Jmail.Close();