Re: [dmarc-ietf] ARC and weak signatures (again)

2016-08-30 Thread Alessandro Vesely
Back to connected lands... On Wed 24/Aug/2016 02:19:35 +0200 Brandon Long wrote: > On Tue, Aug 23, 2016 at 11:55 AM, Alessandro Vesely wrote: >>> Say A -> B -> C are the MTAs: [...] >>> >>> If your MTA is too small to use combinatorial trust assessments, then you >>> are stuck with the same

Re: [dmarc-ietf] ARC and weak signatures (again)

2016-08-23 Thread Terry Zink
etf Subject: Re: [dmarc-ietf] ARC and weak signatures (again) On Tue, Aug 23, 2016 at 11:55 AM, Alessandro Vesely mailto:ves...@tana.it>> wrote: On Tue 23/Aug/2016 02:07:24 +0200 Brandon Long wrote: On Sat, Aug 20, 2016 at 4:02 AM, Alessandro Vesely mailto:ves...@tana.it>> wrote: Say

Re: [dmarc-ietf] ARC and weak signatures (again)

2016-08-23 Thread Alessandro Vesely
On Tue 23/Aug/2016 02:07:24 +0200 Brandon Long wrote: On Sat, Aug 20, 2016 at 4:02 AM, Alessandro Vesely wrote: Say A -> B -> C are the MTAs: C sees a message where B is cited in the To: or Cc: header fields. The message is ARC signed by B. B says A's DKIM signature was good, but now it is

Re: [dmarc-ietf] ARC and weak signatures (again)

2016-08-22 Thread Brandon Long
On Sat, Aug 20, 2016 at 4:02 AM, Alessandro Vesely wrote: > On Fri 19/Aug/2016 01:40:42 +0200 Brandon Long wrote: > > On Wed, Aug 17, 2016 at 2:47 AM, Alessandro Vesely > wrote: > >> On Sat 13/Aug/2016 17:22:52 +0200 Dave Crocker wrote: > >>> > >>> [...] With DKIM, trust assessment is of the en

Re: [dmarc-ietf] ARC and weak signatures (again)

2016-08-20 Thread Alessandro Vesely
On Fri 19/Aug/2016 01:40:42 +0200 Brandon Long wrote: > On Wed, Aug 17, 2016 at 2:47 AM, Alessandro Vesely wrote: >> On Sat 13/Aug/2016 17:22:52 +0200 Dave Crocker wrote: >>> >>> [...] With DKIM, trust assessment is of the entity doing the >>> signing, typically the originating service. With ARC