[retina MacBook Pro 15", Late 2013, OS X 10.11.4]
I always keep Activity Monitor running, and just noticed that CPU usage was up significantly. The process
maspushagent (owned by me) has now been running at ~123% CPU for close to an hour now. The requisite googling doesn't turn up anything useful. What does this do, and will it quit any time soon, or should I kill/reboot/?