Mutt-kz is a fork of Mutt, a sophisticated text-based Mail User Agent, which additionally provides:

* Notmuch integration: virtual folders, labels handling, searches, etc.
* sidebar: list mailboxes (with new mail) in a separate column on screen
* index-color: individual tag coloring
Mutt-kz, in comparison with notmuch-mutt, does not populates directories to emulate virtual folders. As mutt-kz is linked with libnotmuch, the virtual folders are part of the index handling. Also it can add, remove and modify notmuch tags (labels).