I have a Mac mini running 10.9.5 and an IpadAir running IOS 8.1.2 I have two POP accounts I have had for years. Never changed the settings on the computer. Both are set to remove emails from their servers after one week. On the Ipad the accounts are set up to never remove from server. Lately most incoming emails are going straight to the ipad and never come to the computer. It seems random whether a particular email will actually make it to the computer, but if it does it also goes to the ipad, but not vice versa. I have tried resetting the ipad, erasing the whole thing and restarting as a new ipad, resetting my Mail settings on the computer, deleting the accounts and setting them up as new, rebooting the computer........