I don't know, but the result is that this setting is not working if you want to enable it by default.
Every new user is now created with GRYLISTING disabled adn if you want it enebled you must set it by hands user by user...
A very bad issue!
Gabriele Maoret - Head of SysAdmins at SERSIS
Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)