Mailbox Migration Tool

This Rust tool, helps you move all your emails from one IMAP server to another. It does this in two steps:

1. Export: It pulls all your emails from the source server and saves them locally in a mailbox.json file.
2. Import: Then, it takes those emails from the mailbox.json file and uploads them to your destination IMAP server.

It's designed to be fast, keep your folder structure intact, preserve email dates, and mark imported emails as read.