#summary XEP-0273: Stanza Interception and Filtering Technology
#labels Stage-Alpha

= Introduction =

SIFT is a technology to allow clients to filter incoming traffic on the server. This helps save bandwidth, etc.

= Compatibility =

||0.7||Works||

= Quirks =

This implementation is a work in progress.

 * Stanzas to full JIDs get sifted correctly
 * Stanzas to bare JIDs are currently allowed/disallowed for all resources as a whole, and not for individual resources
 * Presence is only sent to available resources, and probes are not sent for unavailable reasources
 * This module currently does not interact with offline messages (filtered messages are dropped with an error reply)
 * Not tested with privacy lists