docs: def save_model(self, request, obj, form, change):
          """
          sends the email and does not save it
          """
          email = message.EmailMessage(
              subject=obj.subject,
              body=obj.body,
              from_email=obj.from_email,
              to=[t.strip() for t in obj.to_emails.split(',')],
              bcc=[t.strip() for t in obj.bcc_emails.split(',')],
              cc=[t.strip() for t in obj.cc_emails.split(',')]
          )
          email.send()