You should notice that you are _still_ sending out invalid iso-8859-1 characters (the cp1252 additions). The only change is that you are now sending them as iso-8859-1, so most clients will show them correctly using the cp1252 charset. I would recommend cleaning up the database if possible. And making sure it doesn't get in again. And using unicode. Each of these will decrease the risk that you are bitten again.
