On Wed 2017-09-13 22:13:35 +0300, Jani Nikula wrote:
> It's useful (*) to be able to easily find messages with certain types
> of signatures. Having the mimetype: prefix searches fail for some
> content types is also genuinely surprising (*). Index the content type
> of signature parts.
>
> While at it, switch to the gmime convenience constants for content and
> signature part indexes.
>
> *) At least for developers of email software!

this series of 2 patches lgtm.

     --dkg