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MSGFILTER

MSGFILTER. Constrains Visible Message Set Per Folder Subset of message set subject to criteria Captures two primary use cases Use case where a mobile mail client desires to mitigate resource consumption, either bandwidth or memory Example: Mail after a certain date

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MSGFILTER

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  1. MSGFILTER • Constrains Visible Message Set • Per Folder • Subset of message set subject to criteria • Captures two primary use cases • Use case where a mobile mail client desires to mitigate resource consumption, either bandwidth or memory Example: Mail after a certain date • Use case where a mobile mail client desires to keep focused on a user defined subset of messages regardless of resource costs. Example: Only mail from *@customer.com

  2. MSGFILTER • Minimal Protocol Modification • Single Command • FILTER SET • Single Response • FILTER SET • Single Response Code • FILTERED • Syntax borrowed from similar draft – WINDOW C: 2 FILTER SET SEARCH SINCE "10-Sep-2004" S: * 3 EXISTS S: * FILTER SET 76 78 90 S: 2 OK FILTER SET Completed

  3. MSGFILTER • Transient Mode • Criteria specified via • SEARCH arguments • Explicit UID ADD/REMOVE • Less likely to burden server with persistent state • Non-Transient Mode • Protocol Opaque TAG Identifier • Easier cleanup – “Self Cleaning” • No Command needed to terminate filtering • Filters are definitive • If they are not in the filter then they will not be seen either through “polling” or through events

  4. MSGFILTER • Filters may be built dynamically • Accumulation rules to allow a filter to be modified incrementally • Accumulation rules have a precedence • TAG • SEARCH • UID ADD/REMOVE

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