I have a client who has a POP3 account in Microsoft Outlook 2016 Professional Plus. When I try to change his account settings, going to More Settings then Advanced, the default delivery is "Leave a Copy of Messages on the Server" and "Remove from Server After 14 days". Both of these items are checked. I have went into this account and tried to take the checks off of both of these boxes as the user doesn't want messages saved to the server. I can uncheck the boxes and click OK. It takes me back to the prior screen of which I click on "Next". A window pops up showing that Microsoft Outlook quit working and then subsequently closes Outlook. You then launch Outlook again, but the settings are checked again. Is there a way to get this permanently modified?