The organization can be a direct handler of the message, such as the author, the originating sending site or an intermediary along the transit path; or an indirect handler, such as an independent service that is providing assistance to a direct handler.
The organization can be a direct handler of the message such as an independent service. This is such as the author. This is such as an intermediary along the transit path; or an indirect handler. This independent service is providing assistance to a direct handler. The author is the originating. This originating is sending site.