I'd like to see co-author verification functionality added in a future S1M release. Listed co-authors would be automatically sent an email upon manuscript submission to say "you have been named as a co-author on a manuscript entitled "Manuscript", submitted today to Journal X. Please click the appropriate link below to indicate that you have contributed to this research, and that the submitting author, Amy Author, obtained your consent to be submit this paper to Journal X." There would then be two hyperlink options to confirm consent/contribution or else to register their objection if consent was not obtained, or they've been named as an author on a paper they had no part in (more common than it should be). The author names could show up in italics until consent was confirmed, then regular text for confirmed authors with old red for any objections, and further email alerts to the admin/editor triggered so they know to take action. This would really help admins to spot when authors have supplied incorrect or falsified email addresses, as we require each named author to have a live, valid email address. This functionality should be configurable, so journals that have no interest could just ignore it, but journals that need it could have it turned on.