Monitor unlimited number of servers
Filter log events
Create email and web-based reports

Direct access to Microsoft articles
Customized keywords for major search engines
Access to premium content

Event ID: 4097 Source: AutoAcceptAgent

Exception occurred while processing item "<item>". This item will not be processed.

The exception information is:
System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.Exchange.Agents.AutoAccept.ConfigurationManager.get_Item(String key)
   at Microsoft.Exchange.Agents.AutoAccept.EventSink.UpdateConfiguration(String sMailboxSMTP)
   at Microsoft.Exchange.Agents.AutoAccept.EventSink.ProcessOnSaveEvent(String itemUrl DateTime& deliveryTime)
   at Microsoft.Exchange.Agents.AutoAccept.EventSink.OnSave(IExStoreEventInfo pEventInfo String bstrURLItem Int32 lFlags).
This problem occurs when you use a Microsoft Entourage for Mac client to send a recurring meeting request to a Microsoft Exchange Server 2003 resource mailbox, because Microsoft Entourage for Mac cannot send valid location information to Exchange 2003. Therefore, Exchange 2003 automatically declines the meeting request. See ME933093 for a hotfix applicable to Microsoft Exchange Server 2003.

This problem occurs if you delete a mailbox before you delete the Auto Accept Agent event sink for the mailbox. In this situation, the mailbox is deleted. However, the mailbox is still registered in the store events folder. Therefore, an orphaned entry for the deleted mailbox is created in the System mailbox. See ME920861 for details on solving this problem.
In our situation, the mailbox quota caused the problem. Mailbox had 102MB in size, while system policy limited this mailbox store to 100MB.
When I sent an invitation to a meeting, I received a confirmation mail from the friend but I did not receive any confirmation from that resource mailbox. At the same time new Auto Accept Agent errors appears on server. This happens because quota is exceeded, generic mailbox cannot send confirmation and the error is generated.
In our situation, we applied Mailbox Manager Settings for generic mailboxes and cleared them.
This behavior manifests when Resource Mailboxes are no longer being managed by Auto Accept Agent on Exchange Server 2003. Unbind each Resource Mailbox using RegisterMailbox.vbs with the /U switch then reregister each Resource Mailbox using the same command without the /U switch.

Windows Event Log Analysis Splunk App

Build a great reporting interface using Splunk, one of the leaders in the Security Information and Event Management (SIEM) field, linking the collected Windows events to



Cisco ASA Log Analyzer Splunk App

Obtain enhanced visibility into Cisco ASA firewall logs using the free Firegen for Cisco ASA Splunk App. Take advantage of dashboards built to optimize the threat analysis process.