2 Replies Latest reply: Aug 2, 2013 2:31 PM by coolspot
Megs78 Level 1 Level 1

Hi All.


I have a mid-2012 Macbook Air (13 inch) running OSX 10.8.4.


When I logged on this morning, I noticed a significant amount of data being sucked up through my mobile broadband - in excess of 1gb over an hour. I had no updates running, no downloads going, no streaming etc - basically the Mac was sitting idle with a few small text emails going back and forth.


I killed off every app/software with direct connections to the internet and found that downloads stopped when I closed Mail and Safari. It increased somewhat when I reopened Safari so I killed the cookies, wiped out all the old website data and restarted the app. It seemed to fix the problem, till I reopened Mail and the usage exploded again.


I installed Rubbernet and it shows that mail is using a massive amount of data over a few minutes - screen dump attached.


Screen Shot 2013-07-15 at 12.00.31 PM.png


My email account uses my own domain mapped through gmail. I haven't changed any of the settings in there at all over the last few months.


Any ideass? I'm desperate to stop the data suck!

MacBook Air (13-inch Mid 2012), OS X Mountain Lion (10.8.4)