Configure the OSTICKET fetch emails

this small project about 1 hour , configure the OSTICKET v.1. to fetch email to the system . Just who know to do this , and have experience with OSTICKET ticket system . New installations , no need update anything. when send email to it's create automaticly ticket . when he replay from the email it's assign to his ticket . when the client open ticket he receive email with id . thank you , best regards . david