It was <2019-05-30 czw 22:27>, when Daniel Kahn Gillmor wrote:
> On Sat 2017-06-03 13:28:46 -0300, David Bremner wrote:
>> 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.
[...]
> I just wanted to point out that this specific request has now been added
> to notmuch, thanks to David Bremner!  It will hopefully be part of the
> forthcoming 0.29 release:
>
> NEWS currently says:
>
>     Add support for indexing user specified headers (e.g. List-Id). See
>     notmuch-config(1) for details. This requires reindexing after changing
>     the set of headers to be indexed.

Yay! Thanks a lot.

-- 
Łukasz Stelmach
Samsung R&D Institute Poland
Samsung Electronics