One of the most popular email services, Gmail keeps track of all your emails with threaded conversations, tags, and Google-powered search to find any message you need.
Email the current proof to its reviewer and note the revision sent.
Your reviewer gets the current image or PDF and a clear question. Your review card shows which revision you sent.
Keep reviewer decisions with the matching project proof card.
Your review cards show who made a proof decision and which file they saw. The reply time stays with the decision.
Route the current project proof by email with a review deadline.
Your reviewer gets the current proof and a clear decision deadline by email when a card is ready for review.