Proof comments/decision email notifications

I'm trying to figure out how to configure our proofs so that the proof owner isn't getting so many emails. We have the designer upload the proof and send it through an automated proof cycle. Originally we were having the designer use the setting of "all Activity" so they were notified of everything involving their proof but it has gotten to be way too many emails. The proof reader can make dozens of changes on multi page proofs and each one of those comments come in to the designer as a separate email. We tried changing the setting to "decisions" which we thought would work since they could go in and check the proof after a decision was made for any comments but after testing this they still continue to get an email on every comment that is made. I can only assume it is because they are the proof owner and these setting really only make a difference when used on a reviewer or approver. Does anyone have any suggestions? Optimally we'd like for all of the comments & the decision to be combined into 1 email to the designer when a decision is made but that doesn't appear to be an option. Thanks for the help Tracy Parmeter