As an agency, we are constantly working on client design and development of email templates and typically use InVision to present and manage the mock-ups. We were wondering what tools and processes do other agencies or teams use to manage client (or internal) feedback and version history? We'd like to figure out a way to cut off feedback at a certina point and revise the creative and then move into the next round. Instead of receiving straggler comments over time while we are already editing.

Any suggestions on tools or methods of managing these types of projects?