Missing $_POST data from a Outlook Express email form

This is bizarre. I send html forms (web orders) to my email client. From there I plug in extra info and submit it to a php script which launches IE or Firefox to see the results of the submit (writing data back to the ecommerce site). This used to work all the time and now nothing is POSTed. if(trim($_POST["order_id"])=="") { echo "<html><head></head><body>Error Modifying Order - Incomplete POST in formation from Email Client - Something is Broken!" phpinfo(); echo "</body></html>"; die; } Nothing posts. This happens on all both my Windows machines - patched and unpatched. It's like some security setting is filtering posted data that originates in email rather than a true web browser. Uggh! But if I pull up the same form in browser - the POST happens fine. Just not from email anymore. Did something cripple Outlook Express? I even tried Thunderbird with same missing data problem. I'm at my wits end on this one. -eric wood