Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread MH Michael Hammer (5304)
-Original Message- From: ietf-dkim-boun...@mipassoc.org [mailto:ietf-dkim- boun...@mipassoc.org] On Behalf Of Dave CROCKER Sent: Monday, August 23, 2010 11:06 PM To: Daniel Black Cc: ietf-dkim@mipassoc.org Subject: Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Wietse Venema
Hector Santos: IMO, it is these statements that continues to raise confusion and raise the barrier of industry wide adoption that includes the general population of MTA developers and operators from tiny to small to even large. As a part-time MTA developer I am not confused. The DKIM

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Dave CROCKER
On 8/24/2010 6:42 AM, MH Michael Hammer (5304) wrote: Please show us in RFC4871 where it says DKIMs main purpose is assessment by reputation filtering engines. It's a fair question, but answering it encounters three core problems. The first is that 4871 is not a systems specification. It's

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Douglas Otis
On 8/23/10 8:05 PM, Dave CROCKER wrote: On 8/21/2010 6:06 PM, Daniel Black wrote: Taking an approach saying we don't care if DKIM survives MLMs is a step in the opposite direction. This is not a proposal I support. Not really, since it was known from the start that survival through

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Dave CROCKER
On 8/24/2010 11:59 AM, MH Michael Hammer (5304) wrote: Then it would appear that we are substantially in violent agreement. in spite of our best efforts. d/ -- Dave Crocker Brandenburg InternetWorking bbiw.net ___ NOTE WELL: This list

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Steve Atkins
On Aug 24, 2010, at 10:23 AM, Mark Delany wrote: On Tue, Aug 24, 2010 at 09:45:20AM -0400, Wietse Venema allegedly wrote: Hector Santos: IMO, it is these statements that continues to raise confusion and raise the barrier of industry wide adoption that includes the general population of MTA

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Rolf E. Sonneveld
Dave CROCKER wrote: On 8/24/2010 11:59 AM, MH Michael Hammer (5304) wrote: Then it would appear that we are substantially in violent agreement. in spite of our best efforts. may I suggest we stop here for a moment and get back to the original question, which in essence was:

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread MH Michael Hammer (5304)
-Original Message- From: Rolf E. Sonneveld [mailto:r.e.sonnev...@sonnection.nl] Sent: Tuesday, August 24, 2010 3:31 PM To: dcroc...@bbiw.net Cc: MH Michael Hammer (5304); ietf-dkim@mipassoc.org Subject: Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Mark Delany
As a part-time MTA developer I am not confused. The DKIM signature provides a simple piece of trace information (I handled this mail) that is cryptographically bound to some header and body content. Yes. And that the obverse is possible: I didn't handle this mail. I don't see how

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Steve Atkins
On Aug 24, 2010, at 1:30 PM, Mark Delany wrote: As a part-time MTA developer I am not confused. The DKIM signature provides a simple piece of trace information (I handled this mail) that is cryptographically bound to some header and body content. Yes. And that the obverse is possible: I

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Charles Lindsey
On Tue, 24 Aug 2010 04:05:38 +0100, Dave CROCKER d...@dcrocker.net wrote: Not really, since it was known from the start that survival through an MLM is highly problematic and the steps towards helping survival were known to be quite limited. Nevertheless, there IS a solution that MLMs

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Rolf E. Sonneveld
MH Michael Hammer (5304) wrote: [...] In any event, I perceive MLMs as the tail that appears to be wagging the dog. In the context of email authentication, there are so many much more interesting mail streams from my perspective. +1 The DKIM signature provides a simple piece of

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Hector Santos
Rolf E. Sonneveld wrote: Although DKIM does not specify (as far as I know) what to do with DKIM signatures in inner bodyparts, I think DKIM signatures should never be removed without a good reason. If you believe this, then you have to advocate the removal of the RFC 4871 mandate regarding

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Hector Santos
Dave, The term Reputation Filtering Engines (RFE) is understood in what it means. Currently proprietary solutions. Absolutely wrong with that. But if you are saying this include policy or more specifically the IETF DKIM Working Group work item RFC 5617, this I don't see a problem in your

Re: [ietf-dkim] Mailing lists and s/mime dkim signatures - mua considerations

2010-08-24 Thread Hector Santos
Hector Santos wrote: Dave, The term Reputation Filtering Engines (RFE) is understood in what it means. Currently proprietary solutions. Absolutely wrong with that. Sorry, missing word - Absolutely NOTHING wrong with that -- Hector Santos, CTO http://www.santronics.com

[ietf-dkim] What can we ask mailing lists to do?

2010-08-24 Thread John R. Levine
may I suggest we stop here for a moment and get back to the original question, which in essence was: should a 1st signer DKIM signature be preserved 'coûte que coûte' when a message is handled by a MLM, or not. The answer is yes, sure, but that's the same answer I'd offer if you asked if

Re: [ietf-dkim] What can we ask mailing lists to do?

2010-08-24 Thread Steve Atkins
On Aug 24, 2010, at 6:35 PM, John R. Levine wrote: may I suggest we stop here for a moment and get back to the original question, which in essence was: should a 1st signer DKIM signature be preserved 'coûte que coûte' when a message is handled by a MLM, or not. It shouldn't, at least not if