I have a client who has a Samsung Galaxy phone that is set up to use pop3. He has a work computer running Outlook 2013 that received mail for the same email account through Comcast hosted Exchange. His complaint is that when he opens Outlook, emails come in and then after a few minutes, they are marked read even if they are still unread on his phone. I explained that this is because he is using pop on the phone and the pop server is likely marking messages read after downloading to the phone. This then gets synced with the Exchange server mailbox and then Outlook shows the messages as read.
I suggested that he set the phone to use Exchange so he would have an exact copy of the mailbox on each device. The problem is that he has become accustomed to being able to delete messages on his phone, knowing they will still be on his computer. He is sure he would continue to do so, forgetting after working this way for several years.
So the question is: is there a way to have the pop server stop marking messages as read when it downloads them to his phone? I know we could set Outlook to use pop but I was trying to avoid that since is poses space issues with .pst files and backup issues since he tends to leave his mail client open and .pst files will not back up when open. Is there another way?