[otrs] Ticket Reply

Hello all, - My problem is the following : 1) OTRS send mail notification for a new ticket to an Customer (with sender= toto@toto.com) 2) When Customer do reply it's reply to toto@toto.com - I would change the receiver when people reply to a notification as following without manually action: 1) OTRS send mail notification for a new ticket to an Customer (with sender= toto@toto.com) 2) When Customer do reply it's reply to titi@titi.com Is it possible to do into OTRS ? Regards, Julian.