E-mails delete on all devices if deleted on one
I have just set up AT&T U-verse and have added e-mail accounts to all my devices including iPad and iPhone. However, when I delete an e-mail on one device, it deletes it on all of them. I want to keep messages on the devices as both my wife and I use them and need to see our messages independently. Under Settings>Mail>AT&T>Account>Advanced, there is no setting for "Delete from Server" which is what the help from Apple states. I only have options for Mailbox Behaviors (Draft, Sent, Deleted), Deleted Messages (Remove), and S/MIME. I have set Deleted Mailbox to go to the Deleted Messages Mailbox on the server and the Remove setting to Never. I cannot change the setting under Deleted Mailbox to Inbox as this is not highlighted.
Has anyone encountered this before? Is there a way to set up my mailboxes to prevent this from occurring?