I am using very simple VBscript to achieve the same thing, and attachements are allowed as well after small modification

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Set oMsg = CreateObject("CDONTS.NewMail")

 oMsg.From = "abc"

 oMsg.To = "abc"

 oMsg.Subject = "you message"

 oMsg.Body = "you message"

 oMsg.Send

 Set oMsg = Nothing

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Julia