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Increasing the Exchange Message Size Limit

Author: Luis Fernandes Updated

Overview

This article describes the process to increase the Message Size Limit for Microsoft Exchange.

 

Process

For Microsoft Exchange 2007 and later:

  1. Open the Exchange Management Shell on the Microsoft Exchange server.
  2. Run the following Windows PowerShell command to increase the size to 50 MB:
 Set-ReceieveConnector –identity “Default [servername]” –maxmessagesize 50MB

For Example: 

Set-ReceieveConnector –identity “Default myserver” –maxmessagesize 50MB


For Microsoft Exchange 2003:

  1. Open Exchange System Manager.
  2. Expand Global Settings.
  3. Right-click Message Delivery > Properties.
  4. Select the Default tab.
  5. Change to the desired size limit.
  6. Select Apply and OK.

Change the Receiving Message Size to 51200 (50MB)

NOTE: The GFI MAX MailProtection default message size is 50MB and cannot be changed.