Recently my company upgraded our firewall's to a pair of 515E's in combination with Cisco ACS. So far we've only seen one real anomaly that I'd like some suggestions on. The pix is setup to require authentication in order to access the web. If a user opens an e-mail (we're running MS Exchange) and the e-mail links to the Internet to pull in all the neat graphics and other stuff you're bombarded with firewall authentications request. I'm assuming once for each item to be pulled from the Internet. But, if you have used your browser and completed the authentication process before you open the e-mail, you will not be prompted. I've had users key in their Id's and passwords a dozen + times trying to open an e-mail. Needless to say they're not happy.
What do you need to do to get that first prompt from the pix to take effect when you open the e-mail? Any help would be appreciated.
