DOCUMENT:Q222926  06-AUG-2002  [exchange]
TITLE   :XADM: How to Limit Size of Public Folder Replication Messages
PRODUCT :Microsoft Exchange
PROD/VER:winnt:5.5
OPER/SYS:
KEYWORDS:exc55

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The information in this article applies to:

 - Microsoft Exchange Server, version 5.5 
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SUMMARY
=======

Public folder replication messages are system messages, and are not subject to
size restrictions by the message transfer agent, or by restrictions specified on
a particular connector (such as the X.400 Connector). If a user posts an
extremely large message to a public folder and that public folder is configured
to replicate across a LAN or WAN, then, depending on variables such as the build
of Microsoft Exchange Server used, the bandwidth, and the quality of the
connection, other mail delivery may slow down or even stop. One solution is to
limit the size of posts to the folder.

MORE INFORMATION
================

From an Exchange client, the owner of a public folder can limit the size of
posts to the public folder. The owner of the public folder must have "send as"
permissions for the folder. To configure permissions for a public folder, start
the Exchange Server Administrator program, click to expand the <Site>
object, click to expand the <Server> object, click to expand the Public
Information Store object, click Public Folder Resources, click
<folder_name>, click Properties, and then click Permissions.

The recommended steps to limit the size of posts to a public folder are outlined
below, but you can modify the procedure as needed.

1. Right-click the public folder, and then click Properties.

2. Click the Administration tab, and then click Folder Assistant.

3. Click Add Rule, and then click Advanced.

4. Under "In Size (kilobytes)" enter "5,000" (without the quotation marks) (for
   this example), and then click OK.

5. Click Delete, and then click "Reply with (compose and save a template)".
   Compose a template reply; for this example, type:

   "This message is too large to post to this folder." (without the quotation
   marks)

6. To leave the Edit Rule window, click OK. To leave the Folder Assistant
   window, click OK, and then to leave the <folder_name> Properties
   window, click OK again.

Public folder replication message size limits are NOT affected by the replication
message size limit value, which specifies that individual replication messages
smaller than the specified size should be "batched" in to a single message up to
the specified size. To set this value, start the Exchange Server Administrator
program, click to expand the <Site> object, click to expand the
Configuration object, click to expand the Servers object, click to expand the
<Server> object, click to expand the Public Information Store object,
click Properties, and then click the Advanced tab. For additional information
about the replication message size limit value, please see the following
articles in the Microsoft Knowledge Base:

   Q222833 XADM: Public Information Store Replication Message Size Limit
   Function

   Q190737 XADM: Message Size Limits Do Not Affect Public Folder Replication

For additional information, please see "Messaging Components, Server
Communication, and External Connectivity" and "Site Topology and Server
Placement for Microsoft Exchange" at the following Web site:

   http://www.microsoft.com/technet/exchange/

Additional query words:

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Keywords          : exc55 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : winnt:5.5
Issue type        : kbhowto

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