Development: Maildir syncback - 5long/sup GitHub Wiki
Development of Maildir Syncback
Usage instructions: Maildir-Syncback, development is going on in the maildir-sync branch.
Syncing labels
Resources:
- notmuch syncback script: https://github.com/altercation/es-bin/blob/master/maildir-notmuch-sync
- mu: http://www.djcbsoftware.nl/code/mu/
How they do it
mu stores keywords (aka labels) under a specific header in the email : X-Keyword. This allows seamless synchronisation with no additional tools or specific formats, at the cost of modifying user's emails with program-specific data.