apple mail settings
on our Mac & IPad we use apple mail. Recently the following began to happen - when we send an email from either the Mac or iPad the sent email shows on both machines - when we delete an email in the inbox, sent box or junk box on either the Mac or iPad the email is deleted on both machines - where do I find the needed settings to change to eliminate this problem ? THANKS
OBS,MacBook Pro (15-inch 2.53 GHz), OS X El Capitan (10.11.6)