one-to-many messaging

[Tom Thomson]

> It's complicated because sometimes the ISP is itself the "intended
> recipient" - very obviously so for Usenet reading, not quite so
> obviously for Usenet posting [the one-to-many in the title] and mail
> relaying. And finally, maybe even for browsing, if the ISP is known to

> be providing a proxy (or a phishing filter).

The usenet reading case only works if I'm using an nntp server provided
by the ISP; if I'm using one provided by someone else the ISP is neither
sender nor intended recipient.  So far as I can tell, the usenet posting
case depends on who the intended recipient is - I don't buy multiple
recipients, the nntp server (or the corporate or actual person operating
it) is the recipient so to me it seems to be identical to the usenet
reading case.

M.