DOCUMENT:Q147298 08-MAR-2000 [exchange] TITLE :XCLN: Maximum Number of Rules Per Folder PRODUCT :Microsoft Exchange PROD/VER:WINDOWS:4.0,5.0 OPER/SYS:WINDOWS KEYWORDS:kbenv XCLN ====================================================================== ------------------------------------------------------------------------------- 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 2000.