[otrs] Remove system Email from CC field when answering a ticket

Hi, It looks stupid, but I tried many settings without success... If a customer send a message to my OTRS system : otrs@mycompany.fr (fetched via POP3) When I use a template to reply to it, the system fills CC with otrs@mycompany.fr I'd rather my users not to have to remove it manually... How to leave it blank ? (I tried both "yes" and "no" settings in Frontend::Agent::Ticket::ViewCompose -> Ticket::Frontend::ComposeReplaceSenderAddress -> Ticket::Frontend::ComposeExcludeCcRecipients and other things... ) Thanks for reading. Have a good day. TanaT