Link to Receipients Not Included in Email

When sending an email it says how many recipients it will be going to and then it says underneath how many recipients won’t be included in the email send; however, it does not offer any information other than that. I would suggest providing a link to those contacts with reasons why they won’t be included so they can be fixed.

Yes please I have been requesting this for over 2 years. It is super frustrating, it knows how many won’t be sent but no explanation as to why. Why can’t it just create a link to the number that won’t be sent and open up a list of them so we can see who they are?