procmail
[Top] [All Lists]

Re: Certified Mail Delivery agent

2001-12-11 21:01:35
At 03:12 2001-12-12 +0000, John Conover wrote:

FYI, there are Procmail/Smartlist scripts available at:

    http://www.johncon.com/john/Cmd/

which is a Certified Mail Delivery agent intended to reduce UCE/spam.

ObQ: _who_ certified it, and why would we trust their certification? Or do you mean "Certified Mail" similar to the US Postal service Certified Mail (which isn't even remotely similar to the process you're describing here anyway).

If a message's e-mail address is not in the "whitelist", the message
is archived, (via Smartlist scripts-like an archiving mailing list,)
and a e-mail sent back to the sender requesting a reply. If the sender
replies, (i.e., in doing so, certifies the message as authentic,)

Replies according to some special text, or just replies? What if the reply comes in the form of a bounce (and we know how many variations there are on those), complete with a copy of the sent message (and therefore, containing the phrase that pays)?

Smartlist script forwards the original message on to the recipient,
and enters the e-mail address in the "whitelist" database.

Q: how well does this work for _mailing lists_ -- does it send the request to the _sender_ (the mailing list, oh, thrill me), or to the _author_ (who never addressed your recipient in the first place, and really shouldn't have to "authenticate" themselves to you to avoid receiving those obnoxious "reply or else" notifications)?

Although technically feasible, my tests show that it is annoying in
practice, and few senders reply to the certification request.

Which means the user of the script will be faces with a lot of trashbinned mail they must manually dredge through to check out because the senders, while at the same time annoying others through its existance.

FWIW, I find that trashing offenders at the SMTP level when I am subjected to autoreplies gone amok is especially effective (my peeve is idiotic "I'm out of the office for the next 24 months" messages on mailing lists). The sendmail access db feature makes this trivially easy to do.

- Sean ( better living through behaviour modification ) Straw

---
 Sean B. Straw / Professional Software Engineering

 Procmail disclaimer: <http://www.professional.org/procmail/disclaimer.html>
 Please DO NOT carbon me on list replies.  I'll get my copy from the list.

_______________________________________________
procmail mailing list
procmail(_at_)lists(_dot_)RWTH-Aachen(_dot_)DE
http://MailMan.RWTH-Aachen.DE/mailman/listinfo/procmail