iPhones using activesync causing excessive transaction log growth on Exchange 2010
Hi there.
We have around 60 iPhone or iPad users who are retrieving their emails from our Exchange 2010 SP2 servers using activesync.
Back when everyone was using the 3GS this worked just fine but late in 2011 we noticed that the transaction logs on our exchange servers were growing out of control. They should be roughly two times the volume of emails sent or received but all of a sudden we were getting fourty times as many! We only send just over 1GB of emails per week but have 50GB of transaction logs in that time.
I've spent ages trying to track down the cause and have an open TAC case with Microsoft that's been dragging on for several months now. We have recently proved that it's activesync causing the log growth - disable it and everything returns to normal - but they don't seem to be in any rush to identify a fix and I suspect their answer will be "Stop using iPhones".
Has anyone else seen this behaviour before and if so did you find a fix?
I was hoping iOS 6 might provide a solution but I'm reluctant to get everyone to upgrade because of the well publicised problems with maps and now I see that there are different Activesync bugs involving cancellation of meeting requests.
Anyone who can provide me with a resolution will win a prize as I'm at my wits end here.
Thanks
iPhone 4S, iOS 5.1.1