achieve gmail-like threaded view in the bat! (with categorization by received mail folder) create virtual folder watching both sent mail and the received folder of choice add folder, colour group columns thread by nothing; sort by folder select all in received folder thread by references (to avoid grouping similar subjects in sent that have no counterpart in desired received folder); selection is maintained rightclick > thread > park thread -- all thread members of threads with at least one message (= a message in the desired received folder) selected are parked thread by nothing, sort by parked status. select all parked and change to colour group representing desired folder. change filter params to include only colour group members. thread by reference.