SBS 2003 - Event 9646 Exceeded maximum of 500 objects of type objtFolder

Getting this error in the event log on SBS2003 Exchange 2003 SP2 about twice
an hour.

Event 9646 :

Mapi session "/o=DOMAIN/ou=first administrative
group/cn=Recipients/cn=Administrator"
exceeded the maximum of 500 objects of type "objtFolder"


The Administrator's mailbox has around 70 odd messages in it that's all. No
extra folders at all.

The server is archiving on a public folder and then items are being moved
from this public folder to another public folder.

These folder contain thousands of messages...but no extra folders at all.

Any ideas what to do about this and where to start looking ?

Run a scan with the SBS 2003 BPA and fix any problems it finds (especially
scalable networking -TCPchimney):

Microsoft Windows Small Business Server 2003 Best Practices Analyzer
http://www.microsoft.com/downloads/d...displaylang=en

More info and troubleshooting on this error can be found at:

Event ID 9646
http://www.eventid.net/display.asp?e...angeIS&phase=1

--
Merv Porter [SBS-MVP]
============================

<> wrote in message
news:hcqa9l$1ein$...
> Getting this error in the event log on SBS2003 Exchange 2003 SP2 about
> twice an hour.
>
> Event 9646 :
>
> Mapi session "/o=DOMAIN/ou=first administrative
> group/cn=Recipients/cn=Administrator"
> exceeded the maximum of 500 objects of type "objtFolder"
>
>
> The Administrator's mailbox has around 70 odd messages in it that's all.
> No extra folders at all.
>
> The server is archiving on a public folder and then items are being moved
> from this public folder to another public folder.
>
> These folder contain thousands of messages...but no extra folders at all.
>
> Any ideas what to do about this and where to start looking ?

Hi Jim,

Thanks for your post and Merv's input.

In addition, this error message may occur if the following condition(s) is true:

o This issue occurs because of a limit on the number of items that clients can open. By default, this limit is set to 100 for attachments and 250 for messages. This
problem may occur if a MAPI client opens more than the default value of certain server objects.
o A program that is running on a client computer opens many MAPI sessions to the Exchange Server computer. The number of MAPI sessions is larger than the
permitted limit.
o You are using Microsoft Office Outlook 2007, and you add a large additional mailbox to your profile. For example, this issue may occur if the additional mailbox
contains more than one thousand folders.

To try to resolve this error, please refer to the following KB articles:

Your Exchange Server 2003 computer may stop responding after a MAPI client opens more than the default value of certain server objects
http://support.microsoft.com/kb/830829/en-us

Event ID 9646 is logged when you try to send many messages in Exchange Server 2003
http://support.microsoft.com/kb/830836/en-us

Event ID 9646 is logged in the application event log of your Exchange Server 2003 computer when a client opens many MAPI sessions
http://support.microsoft.com/kb/842022/en-us

Hope this helps.



Best regards,
Robbin Meng(MSFT)
Microsoft Online Newsgroup Support

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