Łukasz Stelmach <l.stelmach@samsung.com> writes: > I'd like to ask for a new feature: indexing of arbitrary headers. Not > all headers but a few selected by users. > > For example, I get a lot of mails from a Gerrit system. I'd like to keep > them for a while and remove them when they are old enough. Although > these messages are distinguishable in my inbox, they've got subjects > like "Change in ..." and are from "nobody". But these may happen in > other e-mails too. The only 100% sure way to distringuish those e-mails > is to look for headers Gerrit adds. > Thanks for writing this up. Similar requests have been around for a while, but it's good to have a note in nmbug. There are two main blockers I'm aware of (other than someone writing and reviewing the code). 1) We need to index all copies of a message (e.g. using something like the series at id:20170507124012.30188-2-david@tethera.net) 2) we need to decide what happens when someone changes the list of indexed headers. d