Read-only. This property contains the error message string reported by Smtp server.
If some error occured during sending email message, the Send method returns FALSE and
the LastErrorMessage property is set.
Example
mail.From = "myemail@email.address.com"
mail.To = "john@email.address.com"
mail.Subject = "The confirmation message"
mail.AddText "Text"
if not mail.Send() then
Wscript.echo "Error: " & mail.LastErrorMessage
end if