Excerpts from Alexander Klink's message of 2014-04-23 17:42:40 +0200:
> Hi all,
> 
> I am trying to archive all my existing mails in order to make a nicer
> workflow for myself (sort of a GTD thing with reading mails, either
> acting directly or tagging them with 'todo' or 'hold' depending on whether I
> have to do something or am waiting for someone to reply).

bin/sup-tweak-labels was made for this :)

-- 
Matthieu Rakotojaona