Q147298: XCLN: Maximum Number of Rules Per Folder

Article: Q147298
Product(s): Microsoft Exchange
Version(s): WINDOWS:4.0,5.0
Operating System(s): WINDOWS
Keyword(s): kbenv XCLN
Last Modified: 08-MAR-2000

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Exchange Windows 95/98 client, versions 4.0, 5.0 
- Microsoft Exchange Windows 3.x client, versions 4.0, 5.0 
- Microsoft Exchange Windows NT client, versions 4.0, 5.0 
-------------------------------------------------------------------------------

SUMMARY
=======

Microsoft Exchange has the capability to define rules to automatically operate
on messages in the Inbox or a public folder. There is a 32K "packed data" limit
for the rules on each folder, whether Inbox or public folders. The maximum
number of rules depends on the size of the rules defined and the amount of data
required for a rule varies depending on the rule. For example, a rule to move
messages into a folder, for a single recipient, takes about 660 bytes. Hence
there is no defined limit for the maximum number of rules that can be assigned
to a folder. On the average it is between 40 and 50 rules per folder.

The following error will be displayed when the number of rules exhaust the 32K
memory limit:

  Changes to the rule could not be saved. There is not enough memory or the
  rules are too complex. Try deleting some rules.


Additional query words: faq

======================================================================
Keywords          : kbenv XCLN 
Version           : WINDOWS:4.0,5.0
Platform          : WINDOWS

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1986-2002.