For the last 18 months, our Exchange server has been working. However, recently we discovered that we were being used for spam relays. The server was buttoned down, but the relays continued. The problem was traced to NAI WebShield which was passing all messages back to the server.
When I disabled and removed Webshield, our server would no longer send or receive outside e-mail. I attempted to redo the IMS but at that time, Exchange decided to die. I am doing a complete restore from backup,but will then be open to spam relays again. Any ideas out there about what can be done?
