After the update of McAfee Groupshield patch 701 on a Ms Exchange 2003 server we recieved the folowing error:
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)
|Source||Auto Accept Agent|
the SMTP temptables had to be manually purged in order to get emails going.
We took a closer look at mails that were queued and noted down the accounts that had emails in que .
We recreated the mailboxes for those accounts. Also we restarted the SMTP service after resetting the que from registry
HKEY_LOCAL_MACHINESystemCurrentControlSetServicesSMTPSvcQueuing – ResetMessageStatus
(set it to 1).