<https://forum.spamcop.net/topic/1877-resolved%C2%A0held-mail-folder/#comment-12003>
<http://schema.org/upvoteCount>
"0"^^<http://www.w3.org/2001/XMLSchema#integer>
<https://forum.spamcop.net/topic/1877-resolved%C2%A0held-mail-folder/?tab=comments>