I have a mailing list that is composed of several "groups". I can get info by group for "opt outs" but is there a way I can see all the analytics by group (open rate, clicks, etc) and not just based on the full mailing list?
Great question! Response data is displayed by mailing currently, and would show based on all recipients of that particular mailing. I do think it would be interesting to be able to sort that by group. I'll be submitting a feature request for you to add that functionality.