When an autoresponse or automation mail is skipped due to the contact being marked bounced or do not contact, there is no resend option. That would be a big help to be able to resend the emails directly from the contacts activities instead of having to manually send library emails or turn autoresponses into broadcasts or library emails to be able to resend them.

I am aware of the "Missed by" option on autoresponses, but with older products you usually have some old missed bys, that you don't want to send the email to, making that feature less useful.