On Oct 13, 2014, at 12:46 , Eduardo Alvarez <astrochelonian@gmail.com> wrote:

> Have you considered other mailbox formats, such as maildir, for instance? Seems
> that it could solve at least some of the problem.

nupas uses a maildir-like format. It helps tremendously.

Really: if you're doing mail on Plan 9, you want to be running nupas.