|
From: Thomas S. <ml...@hp...> - 2005-07-19 19:47:20
|
You have a good point, Josh. I hadn't considered the whole foreign email situation you mentioned... Beyond that... I personally advocate the challenge-response systems and use one myself. They aren't without their flaws but the value they offer outweighs those flaws. Further, there are architectures that minimize the burden on those you email frequently (check out a-s-k.sf.net) buy incorporating auto-whitelisting techniques that are impossible for spammers to detect using their automated email-gathering tools (I have yet to hear of a compromise of the ASK system). Further, if you look at the direction the industry is headed you'd notice that everyone will eventually be using some form of sender-based authentication. There are several systems out there (Yahoo Domain Keys quickly comes to mind... So does SPF). Though these systems differ somewhat from a typical challenge-response system, the concept is the same--in order to STOP spam, we must force the sender to verify they are valid users. I don't think it matters much if that end is achieved using a "challenge" email, or by verifying a valid MX server exists for the sender's domain, or that the sender's MX server accepts inbound DSNs (similar to what milter-sender does), and so on. So, I absolutely advocate sender verification in the war against spam since spammers have to use fake emails to conceal their identity and thus aren't able to respond to such verifications. You also mentioned "email" congestion. What about network congestion introduced by checking blacklists or verifying Domain Keys? No system is, or will ever, be perfect. I think it's a matter of choosing the lesser of the available evils. -----Original Message----- From: Josh McFarlane [mailto:da...@gm...] Sent: Tuesday, July 19, 2005 12:18 PM To: Thomas Smith Cc: dev...@li... Subject: Re: Re: [Dev-C++] .net langwijs On 7/19/05, Thomas Smith <ml...@hp...> wrote: > > Well, there is one other possible solution... since the list admin doesn't > seem interested in doing anything about this. > > If you just do what the email is requesting (click the link and fill out the > requested "box" by entering the five characters in the picture) you wouldn't > receive any further challenge emails from that person. Except it goes against my fundamental values, as well as logs my email address is some foreign mail server, which could possibly in the future distribute it to spammers. Not to mention I abhor the challenge email filter system, as it does nothing to combat the network congestion that spam generates, and only further increases the problem. Instead of helping to fix the spam problem, the mail servers that employ it take the easy way out, and simply generate a message for every incoming. Be nice if the world worked that way. How would you feel if every phone message you left, you had to call another number to confirm that you really are who you are. Or want to pay a bill? Sure, just mail it and then go in person to verify that you really sent the letter. That's the absurdity of it to me. -- Josh McFarlane "Peace cannot be kept by force. It can only be achieved by understanding." -Albert Einstein |