"there’s one possible issue for those of you who are concerned about your privacy" for anyone worried about this kind of thing, there's a program called mairix

"there’s one possible issue for those of you who are concerned about your privacy" for anyone worried about this kind of thing, there's a program called mairix that will index and search your local maildirs. it's command line, but the results can be used to populate another maildir folder, so it integrates pretty nicely with clients - http://www.rpcurnow.force9.co.uk/mairix/ http://www.rpcurnow.force9.co.uk/mairix/ if you want something more C21 then there's also beagle -http://beagle-project.org/Main_Page http://beagle-project.org/Main_Page [edit: skip that; looks like it's a dead project; recoll might be a good replacement - http://www.lesbonscomptes.com/recoll/ http://www.lesbonscomptes.com/recoll/ ]