User Guide for AsyncOS 13.5.1 for Cisco Email Security Appliances - GD (General Deployment) - File Reputation Filtering and File Analysis [Cisco Email Security Appliance] - Cisco
[https://www.cisco.com/c/en/us/td/docs/security/esa/esa13-5-1/user_guide/b_ESA_Admin_Guide_13-5-1/b_ESA_Admin_Guide_12_1_chapter_010001.html#con_2158662] - - public:Nishad14191
esa and threat grid integration