Re: SPF is harmful. Adopt it.

Jonathan de Boyne Pollard <[email protected]> wrote:
> In the SMTP-based Internet mail system, the recipient either has to be
> permanently connected, and run his/her own SMTP Relay server; or relies upon
> good network connectivity to some "out on Internet" entity (such as Hotmail,
> or a POP3 server) just as in the IM2000 Internet mail case.

No. With SMTP/POP3 you just need connectivity to your ISP's servers
which are going to be on the same network you dial into. They are
"close" to you and hence are going to be pretty reliable. If they are
not, you yell at your ISP or find a new one. With IM2000 you need
connectivity to random places all over the Internet, which is much
less reliable, and you have no one to yell at and no action you can
take if you can't reach them.

> And with IM2000 all that she has to do is behave as she would have to behave
> if reading Usenet off-line.  The "Go on-line once briefly to fetch the list of
> stuff that is available, and then go on-line again once you have selected what
> stuff to fetch and what stuff to refuse." paradigm is neither hard nor without
> _several_ precedents.

Indeed, it's been tried and it is slow and irritating. On-line reading
is much more convenient, assuming your connection to what you're reading
is fast and immediate - which it won't be, with IM2000.