Select the product you need help with

Slow performance when you search a GAL by using an EAS device in an Exchange Server 2010 environment

Article ID: 2784569 - View products that this article applies to.

Expand all | Collapse all

Symptoms

Consider the following scenario:

You have a mailbox that is in a Microsoft Exchange Server 2010 environment.
You access the mailbox by using an Exchange ActiveSync (EAS) device, such as an iPhone.
You search for a name or an alias against a global address list (GAL) of your organization as an email recipient.

In this scenario, results take longer than expected to be received.

Back to the top | Give Feedback

This issue occurs because the EAS device uses Lightweight Directory Access Protocol (LDAP) queries for an Ambiguous Name Resolution (ANR) search. Generally, LDAP queries are not optimal for an EAS device.

Back to the top | Give Feedback

Resolution

To resolve this issue, install Exchange Server 2010 Service Pack 3 (SP3) on the Exchange Server 2010 servers. For more information about Exchange Server 2010 SP3, click the following article number to view the article in the Microsoft Knowledge Base:

2808208

(http://support.microsoft.com/kb/2808208/ )

Description of Exchange Server 2010 Service Pack 3

Back to the top | Give Feedback

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Back to the top | Give Feedback

More information

For more information about ANR, go to the following Microsoft website:

General information about ANR

(http://msdn.microsoft.com/en-us/library/cc223243.aspx)

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Back to the top | Give Feedback