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Intelligent Message Filtering in Exchange Server 2003 does not scan messages that are larger than 3 MB
Article ID: 907691 - View products that this article applies to.
This article describes an event that may be logged when Intelligent Message Filtering (IMF) scans a message that is larger than 3 MB. IMF does not scan messages that are larger than 3 MB.
Note IMF is available as an add-in for the original release version of Microsoft Exchange Server 2003 and for Microsoft Exchange Server 2003 Service Pack 1 (SP1). However, IMF is included with Microsoft Exchange Server 2003 Service Pack 2 (SP2).
After you enable the IMF add-in in Exchange Server 2003 or the IMF feature in Exchange Server 2003 SP2, the following event may be logged in the Application log:
Event ID: 7515
IMF is not designed to scan messages that are larger than 3 MB. Typically, spam e-mail messages are not larger than 3 MB because it costs more to send large messages.