Rapid growth in transaction logs, CPU use, and memory consumption in Exchange Server 2010, Exchange 2013 and Office 365 when a user syncs a mailbox by using an iOS 6.1-based or iOS 6.1.1-based device

Yesterday i was at customer who had problem dat transaction logs Rapid growl.
It was on a Exchange 2013 Server with CU5.

For Exchange 2010 there was released a KB http://support.microsoft.com/kb/2814847

This is still a issue for Exchange 2010, Exchange 2013 and Office 365.

Microsoft has al ready blocked IOS 6.1 – 6.1.1 devices at Office 365.

Server was OK…. But When i run Get-EASDeviceReport.ps1 i saw some IOS 6.1 devices. Sow we going to block this IOS versions.

Powershell:
New-ActiveSyncDeviceAccessRule -querystring “iOS 6.1 10B141” -characteristic DeviceOS -accesslevel block
New-ActiveSyncDeviceAccessRule -querystring “iOS 6.1 10B142” -characteristic DeviceOS -accesslevel block
New-ActiveSyncDeviceAccessRule -querystring “iOS 6.1 10B143” -characteristic DeviceOS -accesslevel block
New-ActiveSyncDeviceAccessRule -querystring “iOS 6.1 10B144” -characteristic DeviceOS -accesslevel block
New-ActiveSyncDeviceAccessRule -querystring “iOS 6.1.1 10B145” -characteristic DeviceOS -accesslevel block