need to second that.
At work, we need to flag messages with labels so everyone can see who was working on that specific mail.
We do not want a big fat Zimbra or open xchange solution, we want to use a small light webmail client like roundcube.
Unfortunatly, there is no such "on board" ability (what a shame).
All the plugins i tested so far are not working with the RC 1.2 version.
The old tunderbird-labels plugin work with the old 0.95 RC version, but i want to stay updated with RC so it would be nice to have this feature build in.
Thanks for considering it, now go, code and release....thanks