It appears that "override server-supplied folder namespace" solves the problem.
Not sure what this means but got the idea from 21328 :-) David Sebastien Bacher wrote: > might be something like bug #21328, could you try if that's fixed with > dapper? > > -- After upgrade to Breezy, hierarchical folder message list no longer correct https://launchpad.net/bugs/4758 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs