<%
Call SendMail("vivpessoa@163.com","yang","Subject","MailBody","yang","gisyj@163.com")
Function SendMail(MailtoAddress,MailtoName,Subject,MailBody,FromName,MailFrom)
'函数参数说明（收件人地址,收件人姓名(可选),主题,邮件内容,发件人姓名(可选),发件人地址）
'on error resume next
Dim JMail,MailServer,Flag
Set JMail=Server.CreateObject("JMail.Message")
If err Then
SendMail = False
err.clear
Exit Function
End if
JMail.Charset="gb2312" '邮件编码
JMail.silent=True
JMail.ContentType = "text/html" '邮件正文格式
MailServer = "smtp.163.com" '用来发送邮件的SMTP服务器
JMail.MailServerUserName = "gisyj" '登录用户名
JMail.MailServerPassWord = "******" '登录密码
JMail.MailDomain = "163.com" '域名（如果用"name@domain.com"这样的用户名登录时，请指明domain.com），可选
JMail.AddRecipient MailtoAddress,MailtoName '收信人邮箱和收信人名称
JMail.Subject = Subject '主题
JMail.AppendHTML(MailBody)
JMail.FromName = FromName '发信人姓名
JMail.From = MailFrom '发信人Email
JMail.Priority = 3 '邮件等级，1为加急，3为普通，5为低级
Flag=JMail.Send(MailServer)
If Flag Then
SendMail=True
Else
SendMail=False
End If
JMail.Close
Set JMail=nothing
End Function
%>

我在本机上装了jmail4.3，然后用以上代码发信，总是不成功，不知道是代码问题，还是要在本机上做一些设置，请各位高手给指点一下，谢谢