Sign in with Microsoft
Sign in or create an account.
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.


The Microsoft Exchange RPC Client Access service crashes intermittently on a Microsoft Exchange Server 2010 server. Additionally, the following event is logged:


  • This issue typically occurs when a delegate of a mailbox accesses the mailbox, mailbox audit logging is enabled and the Microsoft Exchange Active Directory Topology service is stopped on the server.

  • When this issue occurs, clients cannot connect to the Exchange Server 2010 server.


This issue occurs because a System.InvalidOperationException exception occurs.


To resolve this issue, install the following update rollup:

2579150 Description of Update Rollup 4 for Exchange Server 2010 Service Pack 1


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

More Information

For more information about mailbox audit logging, visit the following Microsoft website:

General information about mailbox audit logging

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!