zip file per month?

[crackwitz]

Hi.

I have a ton of emails, thousands per month. I would prefer them not be individual files on my disk. I run gmvault with --resume so it probably doesn't touch emails older than a week anyway.

I've written my own script that runs once a month and packs up (7z) directories that are older than three months. python has a zipfile module and could do this on its own. Ideally I would want gmvault to create new emails right inside a monthly archive file.

Would this be a feature worthy of being included in gmvault itself?