You may encounter a long delay in receiving email messages by using Microsoft Outlook in a Microsoft Exchange Server 2010 environment. However, you receive the email messages timely when you use Outlook Web App (OWA).


This issue occurs because of a deadlock that occurs in email notification threads in the Microsoft Exchange RPC Client Access service.


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 Description of Exchange Server 2010 Service Pack 3


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

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!