为什么用aspmail组件发送邮件，总是有错误

[ronanlin]

为什么用aspmail组件发送邮件，总是有错误
<%
Set Mailer = Server.CreateObject("SMTPsvg.Mailer")
Mailer.FromName = "Joe’s Widgets Corp."
Mailer.FromAddress= "[e-mail]"
Mailer.RemoteHost = "smtp.163.com"
Mailer.AddRecipient "John Smith", "[e-mail]"
Mailer.Subject = "Great SMTP Product!"
Mailer.BodyText = "Dear Stephen" & VbCrLf & "Your widgets order has been processed!"
if Mailer.SendMail then
Response.Write "Mail sent..."
else
Response.Write "Mail send failure. Error was " & Mailer.Response
end if
%>

总是提示错误Mail send failure. Error was [10057] Socket is not connected
请问是什么原因？？？