Being able to track replies would be excellent, it can also help you avoid spamming contacts that might have already communicated to you through a campaign email - “has replied to marketing email XYZ” and “has NOT replied to marketing email XYZ”
also being able to see the number of forwards, (I understand we cant see who emails were forwarded to) being able to differentiate between those that received the email initially and opened it/replied and those that received the email through a forward.
Would gladly be apart of the beta testing as I seem to get the option for a lot of other features as well! (Would be great when Beta testing if we had a section for feed back though 
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