Are there any good maildir manipulation utilities out there?

[Kurt Hackenberg]

On 2021/04/07 17:01, Chris Green wrote:

> I'm looking for a tool which will allow me to search through a large
> hierarchy of maildir messages and then provide actions to take on the
> matched messages.


fdm?
<https://github.com/nicm/fdm/blob/master/MANUAL>

Or some other filter-and-deliver program -- but not procmail, because 
it's a zombie, abandoned by its last maintainers, last release 20 years ago.