Ho un errore che non capisco:

ADODB.Fields error '800a0bb9'

Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another.

/test_mail.asp, line 12

codice:
DIM iMsg, Flds, iConf

Set iMsg = CreateObject("CDO.Message")
Set iConf = CreateObject("CDO.Configuration")
Set Flds = iConf.Fields

Flds(cdoSendUsingMethod) = cdoSendUsingPort
Flds(cdoSMTPServer) = "smtp.aruba.it" 
Flds(cdoSMTPServerPort) = 25
Flds(cdoSMTPAuthenticate) = cdoAnonymous ' 0
Flds.Update

With iMsg
Set .Configuration = iConf
.To = destinatario@tiscali.it"
.From = "mia_posta"
.Sender = "demon@tiscali.it"
.Subject = "|| prova|| "
.TextBody = "prova invio"
.Send
End With