"A problem occurred while trying to use your mailbox" error when trying to accept a recurring meeting

Consider the following scenario:

• The mailbox for a user is hosted on Microsoft Exchange Server 2007.
• The user receives a recurring meeting that is sent from a Microsoft Exchange Server 2010 mailbox.
• The user tries to accept the recurring meeting by using Outlook Web Access.

In this scenario, the user receives the following error message:

This is a known issue in the current release of Exchange Server 2010.

To work around this issue, use one of the following methods.

Method 1

Open the Calendar folder in Outlook Web Access, then accept the recurring meeting from the Calendar folder instead of from the�Inbox folder.

Method 2

Accept the recurring meeting by using Microsoft Outlook.

This issue only occurs when an Exchange Server 2010 user sends a recurring meeting to an Exchange Server 2007 user by using Outlook Web Access. It does not occur if the Exchange Server 2010 user sends the recurring meeting by using Outlook. �

This issue does not occur when an Exchange Server 2007 user sends a recurring meeting to an Exchange Server 2010 user.