Austin Clements <amdragon@MIT.EDU> writes:

> Quoth Petri Savolainen on Oct 01 at  3:39 pm:
>>    Hello,
>>    I could not find information anywhere in notmuch docs about what is
>>    actually indexed - specifically, what email headers are indexed and
>>    searchable? If a header is not indexed, does searching for its value still
>>    result in a search hit?
>>    It would be nice if one could just provide the list of headers to be
>>    indexed in some configuration file or something.
>>    Thanks,
>>     Petri
>
> notmuch doesn't currently implement this, though it is an
> oft-requested feature.  One (not insurmountable) difficulty is that
> the database would have to be rebuilt if a user-configured list of
> headers changed and there are technical limitations that prevent us
> from simply indexing all headers.  Out of curiosity, what headers are
> you interested in indexing?
>
> The currently indexed headers are described in man
> notmuch-search-terms.

maybe related: is it possible to index only the headers and not the mail
body?