Outbound SSL Decryption (SSL Forward Proxy) In this case, the firewall proxies outbound SSL connections by intercepting outbound SSL requests and generating a certificate on the fly for the site that the user wants to visit.Edit the GPO that you would like to use to deploy the registry settings in the following way: FD41394 - Technical Tip: Untrusted certificate warning in FortiGate for HTTPS sites using Entrust server certificates FD53149 - Technical Tip: Application Server Operating System updates fail FD36494 - Technical Tip: Procedure for HA manual synchronization Click on the button that says Clear SSL state, close the window, and try reloading your website.To do this, click on the Finder icon, followed by Go > Utilities > Keychain Access: In this three-day course, you will learn how to use basic FortiGate features, including security profiles. Fortigate allow untrusted ssl certificates