I have Exchange Enterprise 2003 with SP3 installed. We have about 130 clients connecting to Exchange with POP3/SMTP connection using Outlook or Outlook Express. If I want to use an out of office assistant, does the Online Web Access with Exchange work? I have tried logging onto the OWA and setting up the out of office assistance, but any external emails received a reply is not sent. Only replies from within the organization. Any ideas?