Re: [cobalt-users] TMDA

[Jeff Lasman <blists@xxxxxxxxxxxxx>]

On Monday 15 December 2003 04:47 pm, Wayne wrote:

> Let me understand. This means that your server some how can tell the
> difference from normal mail and a challenge response mail. How does
> it do that?

Easy... the first time I get a challenge/response email I block that 
domain from sending to me.  So I'll never get a challenge/response 
email from that sending domain again.

> Now I am confused. Isn't this saying the opposite of the previous
> paragraph? There you say that the challenges are blocked and here it
> seems the challenges are not blocked. Still confused.

No, I'm saying if you never send a challenge/response email to me, I'll 
never list you.  For the big companies, I get these and block them all 
the time, but if I never get one from you I'll never know you use 
challenge/response, so I'll never block it.

> What sort of problems have you had. I would be interested to know.
> The only thing I see so far is the burden put on the sender sending
> mail to me to reply to the challange response. Usually what I do
> there is to add their name to the whitelist when I see their mail in
> the pending file. Are there other problems? The more information the
> better. Please let me know. Thanks in advance.

Dan has answered this as well as it can be answered.  My personal 
regrets are the mailing list problems we end up with because people 
forget they use challenge/response and sign up to mailing lists, or 
they don't understand what challenge/response does to mailing list 
mailings, or the people who have websites with us who blame us because 
they've bought services from a challenge/response company and don't get 
their web form responses anymore.

Jeff
-- 
Jeff Lasman, nobaloney.net, P. O. Box 52672, Riverside, CA  92517 US
Professional Internet Services & Support / Consulting / Colocation
Our blists address used on lists is for list email only
Phone +1 909 324-9706, or see: "http://www.nobaloney.net/contactus.html";