My Mail app has been running overtime since the new security installation. Is this a temporary result of new indexing, or are there settings I need to change?
MacBook Pro (Retina, 13-inch, Late 2013), OS X El Capitan (10.11.6)
In Mail Preferences : General, see that you are checking for new mail every 15 minutes, or a longer interval. If you are not using Bluetooth, turn it off. My 2014 MacBook Air with the 2016-001 patch applied does not exhibit your reported issue, or any of the countless other reports (the update ate my neighbor's cat...) about the update.
Why is my Mail app sucking my battering since the latest security update?
