I have a generic Mail box that has several people set up as managers so that they can check the mail in the event that one or more people are on vacation. In older versions on the LN client whenever any one of these managers of the mailbox opened an email the return receipt was generated. Now it seems in the R6 client that only the owner of the mailbox sends the return receipt. Can this be modified so that whenever any one of the managers of the mailbox opens an email the return receipt is generated?