We have Exchange 2003. I have read through several of the forums already posted and can't seem to find a direct answer with the best solution. Just a few days ago, we started seeing: Event Type: Error Event Source: MSExchangeIS Event Category: General Event ID: 9667 Date: 3/15/2011 Time: 5:12:37 PM User: N/A Computer: servername Description: Failed to create a new named property for database "First Storage Group\Mailbox Store (name)" because the number of named properties reached the quota limit (8192). User attempting to create the named property: "SYSTEM" Can someone tell me what the best resolution is? I've read through this article http://blogs.technet.com/b/exchange/archive/2010/07/29/3410545.aspx and would like someone to tell me if applying the hotfix and doing the regedit described will take care of the problem. Is there any way to view the table that contains the "named properties"? Thanks for your time.

That is a good way to fix the problem.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Yes you need to do the hotfix and registry, that will stop the promotion of SMTP based named properties. Yes to get the table of named props use MFCMapi and then open your mailbox and run “Property Pane”/”Find All Named Props (SLOW). Ensure that you reboot after making the registry change, after you apply the hotfix and registry you can dump the named props table over a course of few days and see if they are still increasing. You may still get some named props from mapi\authenticated submissions so that may be a red herring but you should not see the rapid growth as before which most come from external SMTP based messages. James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Hi, It is a good way to apply the hotfix and do the regedit described for the problem. And remember that raising the quota can't fix the issue and it just pushes the threshold when you get alerted. And please refer to the article: How to configure quota settings for named properties and for replica identifiers in Exchange Server 2003 and in Exchange Server 2007 http://support.microsoft.com/default.aspx?scid=kb;EN-US;820379 Thanks