[问题求助] VBS发邮件出现错误553 authentication is required

kevinll

用下面的脚本发邮件（相关参数已赋值），出现错误
553 authentication is required

NameSpace = "http://schemas.microsoft.com/cdo/configuration/"
set Email = CreateObject("CDO.Message")
Email.From = "发件人地址"
Email.To = "收件人地址"
Email.Subject = "测试"
x="内容文件的绝对路径"
y="附件绝对路径"
Set fso=CreateObject("Scripting.FileSystemObject")
Set myfile=fso.OpenTextFile(x,1,Ture)
c=myfile.readall
myfile.Close
Email.Textbody = c
Email.AddAttachment y
with Email.Configuration.Fields
.Item(NameSpace&"sendusing") = 2
.Item(NameSpace&"smtpserver") = "邮箱服务器" 
.Item(NameSpace&"smtpserverport") = 25
.Item(NameSpace&"smtpauthenticate") = 1
.Item(NameSpace&"sendusername") = "用户名"  
.Item(NameSpace&"sendpassword") = "密码" 
.Update
end with
Email.Send
Set Email=Nothing
复制代码

我已经设置了用户名和密码啊，邮箱服务器是smtp.163.com，操作系统是WIN 2003 SERVER,需要配置哪里吗？防火墙没开。

kevinll

换成了QQ邮件服务器，出现错误：

503 Error: need EHLO and AUTH first !