A ranting email sent to a large group of people, beyond the circle of recipients interested in hearing the writer's side of an issue, for various secondary reasons not limited to making a cogent argument about the subject matter (e.g. vanity publishing, indirectly writing "to" someone to stay in touch), and likely in response to which there are few if any appropriate choices (e.g. "Right on!" and "Unsubscribe"). Indeed, it is probably better for the recipient not to respond to rantspam unless or until he or she has lost all patience with the sender, at which point the only logical response is for her or him to send a ranting email, replying to all recipients. See also diatribal.

When you eat dirt for the first time and leave your family to build a shack in the woods