RE: [Declude.JunkMail] Earthlink now using challenge-response

[Andy Schmidt]

Title: Message

Darin,   what's the problem?  As long as Challenge/Response messages originate from "<>" (the null sender) it wouldn't matter if two major ISPs do it.   They key is:   a) have a weighting system in place so that only "questionable mail" is challenged to cut down on overhead   b) send the challenges from NULL sender to avoid ping-pong effect   c) store the challenged (questionable) emails in a special "Pending" folder where the user can review it and "release" the email manually.   Result:   If the user is WAITING for an eCommerce automated mail (such as an order confirmation), then can just release it from their "Pending" folder.  If the sender is a spammer, then the user won't be bothered.  If the sender is an individual, they can add themselves to the "known senders" list simply by visiting the "Challenge/Response" URL.   I run a number of large eCommerce Sites - and the Challenge/Response Systems of other ISPs has not prevented transactions to succeed!?   The lack of a properly implemented challenge/response mechanism for Imail/Declude (for those who like to implement it) has always been a disadvantage. Best Regards Andy Schmidt Phone:  +1 201 934-3414 x20 (Business) Fax:    +1 201 934-9206 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Darin Cox Sent: Friday, April 15, 2005 09:29 AM To: Declude.JunkMail@declude.com Subject: [Declude.JunkMail] Earthlink now using challenge-response Ugh... I just saw a Challenge-Response email from an EarthLink user in the hold queue.  It's obviously an EarthLink service.  I assume they've exempted other EarthLink users from this, but I wonder what will happen when another major ISP decides to do it as well... insanity... Darin.