(compressed) mdbox storage format support

[virgosystems]

Hi,

I'd like to use vimbadmin with compressed mdbox storage format, but in many place are hardcoded maildir: and other wrong solutions (du, etc), so disk usage, archiving, deleting, etc don't works.
Can you improve app with compressed mdbox format?

Thanx
Laszlo

[barryo]

Hi @virgo - I'm happy to review a PR on this but it's an itch that we personally need scratched so can't assign resources to it 😢