All users with administrator privileges can change spam quarantine settings and view and manage messages in the spam quarantine. You do not need to configure spam quarantine access for administrator users.
If you configure access to the spam quarantine for users with the following roles, they can view, release, and delete messages in the spam quarantine:
-Operator
-Read-only operator
-Help desk user
-Guest
-Custom user roles that have spam quarantine privileges
These users cannot access spam quarantine settings.
https://www.cisco.com/c/en/us/td/docs/security/esa/esa14-0/user_guide/b_ESA_Admin_Guide_14-0/b_ESA_Admin_Guide_12_1_chapter_0100000.html?bookSearch=true#con_1624156