Importance

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Abstract

A method for providing a filtering service to a front-end processing daemon (FD) in a messaging system independently of the FD. A front-end filtering daemon (FFD) is configured to accept filtering requests from at least one FD through a front-end filtering client (FFC) residing the at each FD, and send back results after executing the requests. Pre-formatted requests and replies are employed between the FFC and the FD. Requests are classified in pre-defined categories and prioritized according to their category. The FFD may reside at another device and support a plug-in architecture enabling an administrator to modify a plurality of filtering plug-ins. Each plug-in may include at least one filtering function. A handler list maintained by the FFD is employed to sort incoming requests and direct to the appropriate plug-ins. Negative results from plug-ins are then reported to the FD as a rejection along with an error code.

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First Claim