<https://forums.slipstick.com/threads/90460-linking-contacts-to-a-message-where-the-contact-isnt-an-addressee/>
<http://schema.org/datePublished>
"2013-08-20T18:02:52+00:00"^^<http://schema.org/Date>
<https://forums.slipstick.com/threads/90460-linking-contacts-to-a-message-where-the-contact-isnt-an-addressee/>