[ietf-dkim] Corner cases and loose ends, was draft-vesely-dkim-joint-sigs

2010-09-24 Thread Alessandro Vesely
On 23/Sep/10 21:16, John R. Levine wrote: All of this emphasis on complex designs for MLMs strikes me as a waste of time, since it's a tiny corner of the mail space that has not historically been a vector for abuse, and shows no sign of becoming one. That's why my advice is that lists should

[ietf-dkim] Discussion lists and broadcast lists are not the same thing

2010-09-24 Thread Wietse Venema
Alessandro Vesely: On 23/Sep/10 21:16, John R. Levine wrote: All of this emphasis on complex designs for MLMs strikes me as a waste of time, since it's a tiny corner of the mail space that has not historically been a vector for abuse, and shows no sign of becoming one. That's why my

Re: [ietf-dkim] Discussion lists and broadcast lists are not the same thing

2010-09-24 Thread Jeff Macdonald
On Fri, Sep 24, 2010 at 8:40 AM, Wietse Venema wie...@porcupine.org wrote: Alessandro Vesely: On 23/Sep/10 21:16, John R. Levine wrote: All of this emphasis on complex designs for MLMs strikes me as a waste of time, since it's a tiny corner of the mail space that has not historically been

Re: [ietf-dkim] Discussion lists and broadcast lists are not the same thing

2010-09-24 Thread Dave CROCKER
On 9/24/2010 7:52 AM, Jeff Macdonald wrote: It may be productive if we distinguish between two-way discussion lists where participants send mail to the list, and one-way broadcast lists where only the owner (or their agent) sends mail to the list. The difference between these is to be large

Re: [ietf-dkim] Discussion lists and broadcast lists are not the same thing

2010-09-24 Thread Hector Santos
Wietse Venema wrote: According to Murray's definition, MLMs include ESPs and email marketers, which originate a volume of traffic and have historically been a vector for abuse. Indeed, except for subscription mechanisms and deployed software, most of the problems are similar. It may be

Re: [ietf-dkim] Discussion lists and broadcast lists are not the same thing

2010-09-24 Thread Alessandro Vesely
On 24/Sep/10 17:06, Dave CROCKER wrote: On 9/24/2010 7:52 AM, Jeff Macdonald wrote: It may be productive if we distinguish between two-way discussion lists where participants send mail to the list, and one-way broadcast lists where only the owner (or their agent) sends mail to the list.

Re: [ietf-dkim] Discussion lists and broadcast lists are not the same thing

2010-09-24 Thread Jeff Macdonald
On Fri, Sep 24, 2010 at 12:46 PM, Alessandro Vesely ves...@tana.it wrote: On 24/Sep/10 17:06, Dave CROCKER wrote: On 9/24/2010 7:52 AM, Jeff Macdonald wrote:  It may be productive if we distinguish between two-way discussion lists  where participants send mail to the list, and one-way

Re: [ietf-dkim] draft-vesely-dkim-joint-sigs

2010-09-24 Thread Scott Kitterman
On Thursday, September 23, 2010 03:16:53 pm John R. Levine wrote: Ian, this makes no sense to me. If a signing domain is concerned enough to choose to implement ADSP, why would they reduce what they are signing to accommodate a small percentage of their mail going to MLMs that they may or

Re: [ietf-dkim] Discussion lists and broadcast lists are not the same thing

2010-09-24 Thread John Levine
Do concepts generalize enough to allow issuing draft-ietf-dkim-mailinglists also for these authoring MLMs? No. All of the complications in mailing lists arise from the fact that the author of the message is not related to the operator of the list. Even though ESPs are generally sending mail

Re: [ietf-dkim] Corner cases and loose ends, was , draft-vesely-dkim-joint-sigs

2010-09-24 Thread Michael Deutschmann
On 23/Sep/10 21:16, John R. Levine wrote: All of this emphasis on complex designs for MLMs strikes me as a waste of time, since it's a tiny corner of the mail space that has not historically been a vector for abuse, and shows no sign of becoming one. It may be tiny, but users will not

Re: [ietf-dkim] Corner cases and loose ends, was , draft-vesely-dkim-joint-sigs

2010-09-24 Thread John R. Levine
All of this emphasis on complex designs for MLMs strikes me as a waste of time, since it's a tiny corner of the mail space that has not historically been a vector for abuse, and shows no sign of becoming one. It may be tiny, but users will not tolerate the total destruction of mailing list

Re: [ietf-dkim] Corner cases and loose ends, was , draft-vesely-dkim-joint-sigs

2010-09-24 Thread Michael Deutschmann
On 24 Sep 2010, John R. Levine wrote: Since RFC 5617 says that discardable domains should not send mail to lists, nobody who can read should be affected by that. But that means DKIM/ADSP gets deployed so rarely at the sender side, that it could just as well not exist. And that still leaves the

[ietf-dkim] Another reality check

2010-09-24 Thread John R. Levine
Looking through my notes, I see one report of an IETF list where a sender who hadn't read RFC 5617 sent mail from a discardable domain, and a recipient who also hadn't read RFC 5617 rejected rather than discarding on discardable missing signatures, and got themselves bounced off the list. The

Re: [ietf-dkim] Another reality check

2010-09-24 Thread Hector Santos
John R. Levine wrote: Looking through my notes, I see one report of an IETF list where a sender who hadn't read RFC 5617 sent mail from a discardable domain, and a recipient who also hadn't read RFC 5617 rejected rather than discarding on discardable missing signatures, and got themselves