Hi, For some security reason, I need to block "Gmail Drive" in my company's LAN. By using the following configuration, I can block it if users log in "Gmail Drive" in a normal way: acl gdrive url_regex -i gmailfs acl gmail dstdom_regex -i .*.gmail.com .*mail.google.com http_access deny gmail gdrive But if users log in "Gmail Drive" with the option "Use Secure Http" enabled, the method above will be unfunctional. Is there a way to block this software completely? Thanks in advance! Best Regards, Steven