Off course I’ll try not to hinder the current notmuch-users. My intent is to even find some support for it. As far as I know Gmail was the great example of threading for the SUP-developers, and SUP lead to Notmuch. So Gmail-threading is still the best I suppose, except for git send-email-users, which happen to have quite an overlap with the developers of nutmuch. Anyone interested in me patching Notmuch, or shall I keep the changes to myself? Van: mnazarewicz@gmail.com … This is a misfeature which only reinforces the incorrect behaviour and one of the things I hate about Gmail. As such I hope that at the *very* *least* there will be an option to turn this behaviour off.