一种解决HTML Jmail信件乱码的方法：

  Mail.HTMLBody ="Dear sir,<br>"+"Please reply the following question.<br>"+strqeustion+"<br>From "+strmail
 改为：
  Mail.Body = "Dear sir,<br>"+"Please reply the following question.<br>"+strqeustion+"<br>From "+strmail
  Mail.Contenttype="text/html"

但是如果要加附件的话
应该是
 Mail.Charset="utf-8";
 Mail.HTMLBody="Dear sir,<br>"+"Please reply the following question.<br>"+strqeustion+"<br>From "+strmail;
 Mail.AddAttachment(File_Name,name,false,null);