Microsoft Workarounds to iOS Exchange Bug Include Blocking iOS 6.1 Users

Microsoft's support document over an iOS bug affecting Microsoft Exchange suggests blocking iOS 6.1 users as one workaround.

The bug recently forced AOL to disable meeting management for all mobile devices, according to a letter sent to their corporate employees.

Symptoms
When a user syncs a mailbox by using an iOS 6.1-based device, Microsoft Exchange Server 2010 Client Access server (CAS) and Mailbox (MBX) server resources are consumed, log growth becomes excessive, memory and CPU use may increase significantly, and server performance is affected.


Additionally, Office 365 Exchange Online users receive an error message that resembles the following on an iOS 6.1-based device:
● Cannot Get Mail
● The connection to the server failed.
● The only option available to users is OK.

Status
Apple and Microsoft are investigating this issue. We will post more information in this article when the information becomes available.

Currently, we recommend that you open an Enterprise Support case with Apple, either through an Enterprise agreement or through a "Cross-Platform Integration and Command-Line Interface" pay-per-incident case to report and diagnose the behavior in iOS 6.1.

Workaround
To work around this issue, do not process Calendar items such as meeting requests on iOS 6.1 devices. Also, immediately restart the iOS 6.1 device.


If the problem continues, use one of the following methods to work around the issue.
● Method 1: Remove and re-create the device partnership
● Method 2: Create a custom throttling policy for iOS 6.1 users
● Method 3: Block iOS 6.1 users

Read More [via AllThingsD]