Changing Exchange 2003 Message Size Limits

To change the default limits for sending and receiving message size

1. In Exchange System Manager, expand Global Settings. Right-click Message Delivery and then click Properties.
   
2. Select the Defaults tab.
   
3. Change the limits for Sending Message Size and Receiving Message Size.
   

To change the size limit of the individual mailboxes

1. On the Exchange Server, open Active Directory Users and Computers.
   
2. Select the user for which you would like to change message size limits, then right-click and click Properties.
   
3. Select the Exchange General tab.
   
4. Click on Delivery Restrictions.
   
5. Set the Sending Message Size and Receiving Message Size and click OK.
   

Posted in: Exchange