"Guy Fawkes" <spare_the_rod@spoilthechild.com> schreef in bericht
news:4513a966$0$19680$88260bb3@free.teranews.com.. .
>
> "Guy Fawkes" <spare_the_rod@spoilthechild.com> schreef in bericht
> news:45136287$0$19719$88260bb3@free.teranews.com.. .
>> http://www.infoworld.com/article/06/...ighters_1.html
>>
>> It seems we are losing the battle against spam and that the Internet will
>> ultimately be overwhelmed by spam. I've been walking around with the idea
>> for a long time to amend the SMTP protocol such that you have to give
>> permission to people to mail you (same as with IM), otherwise the mail is
>> simply tossed.
>>
>> Any comments?
>
> To elaborate a little bit:
>
> The idea that there would be an addional command:
>
> OPT-IN_REQUEST<SP>FROM:<SP><reverse-path><CRLF>
>
> The SMTP server for the recipient would store the request.
>
> The recipient would have to log in on the SMTP server to receive a list of
> opt-in requests. Note that this means that everyone would have to log in
> on both the SMTP server and their POP/IMAP server. Also the mail server
> for the domain would have to store the OPT-IN_REQUEST queues and the list
> of allowed senders, a fairly large overhead, but so be it.
>
> The MAIL FROM command would be the same but the RCPT TO would have
> different failure codes:
>
> S: RCPT TO:Smith@pipex.com
> R: 560 Not allowed to send mail to recipient.
>

The OPT-IN_REQUEST would only have a mail address in it, no 'message' of
some sort where the sender can ask for a reason to be allowed to be on the
opt-in list since this could be misused by spammers to send spam.

There would be further commands to:

- retrieve the OPT-IN_REQUEST queue from the server
- abillity to add or remove mail addresses to/from the OPT-IN_LIST (the list
with e-mail addresses which are allowed to send mail to the recipient)
- login on the server to enable the user to alter the OPT-IN_LIST and
retrieve the OPT-IN_REQUEST queue. Internet service providers will ussually
make the login/password combinations identical to the POP/IMAP authorization
for practical purposes.

Guy



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