Email Form 501:SMTP server error

abirhasan — Fri, 13 Sep 2013 14:28:12 GMT

I have reformatted my ASP email form to fit to chilisoft system
(CDONTS), but it continues to give me the same error:

Error encountered: 501:SMTP server error

here is my current script:

<%
Set mailmsg = Server.CreateObject("CDONTS.NewMail")

mailmsg.To = "webmaster@staticfiends.com"

mailmsg.From = request.form("Name") ' Specify sender's name

mailmsg.Body = "Peaceful Productions Request" & Chr(13) & Chr(10) & Chr(13) & Chr(10) & _
"Email: " & request.form("Email") & Chr(13) & Chr(10) & _
"Comments: " & request.form("comments") & Chr(13) & Chr(10)

mailmsg.Host = "neptune.lunarpages.com" ' Specify a valid SMTP server



On Error Resume Next
mailmsg.Send
If Err <> 0 Then
Response.Write "Error encountered: " & Err.Description
else
response.write "Thank you. We will contact you shortly,about your request."
response.redirect("/peaceful-productions/index.htm")
End If
%>


through suggestions from the chilisoft help forum, I have tried these 
alternatives:

mailmsg.Host = "66.28.237.139" 
mailmsg.Host = "localhost" 

none of these work (all returning the same error)

Any suggestions or help??

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Email Form 501:SMTP server error