Re: [ietf-smtp] broken signatures, was Curious
Michael Richardson <mcr+ietf@sandelman.ca> Wed, 22 July 2020 01:45 UTC
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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: "Kurt Andersen (b)" <kboth@drkurt.com>
cc: SMTP Discuss <ietf-smtp@ietf.org>
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Date: Tue, 21 Jul 2020 21:45:51 -0400
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Subject: Re: [ietf-smtp] broken signatures, was Curious
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Kurt Andersen (b) <kboth@drkurt.com> wrote: >> any system that knows what >> some header is, (such as X-BeenThere or X-GRID-REF) *is* ought to rip that >> out as it knows whether or not its useful. > That's a highly presumptuous stance to take. Knowing what a header is and > making a judgement as to whether or not it is useful are not at all the > same thing. Amongst other relevant points is the question of "useful to > whom (or what)"? Something that is not useful to 99.9% of recipients might > be very useful to the remaining 0.1% (witness the current thrash in the > dmarc-wg regarding components within the 5322.From header field)... my appologies... let me a use a few more words here. (because I agree with you, and you clearly didn't understand my point) A system that knows what X-GRID-REF is, because it use that header itself, ought to know where it is a useful field or not, and what the implications are of removing it. This might deal with some of the X-Foo-bar-SOMEHEXSTUFF: that seems to accumulate from multiple hops what I suspect is an internal load balanced set of systems. -- Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works -= IPv6 IoT consulting =-
- [ietf-smtp] Curious, with this now being associat… Michael Peddemors
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… E Sam
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… E Sam
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… John Levine
- Re: [ietf-smtp] Curious, with this now being asso… E Sam
- Re: [ietf-smtp] Curious, with this now being asso… John Levine
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… Jeremy Harris
- Re: [ietf-smtp] Curious, with this now being asso… Arnt Gulbrandsen
- Re: [ietf-smtp] Curious, with this now being asso… John Levine
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… Arnt Gulbrandsen
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… Alessandro Vesely
- Re: [ietf-smtp] Curious, with this now being asso… John Levine
- Re: [ietf-smtp] Curious, with this now being asso… John Levine
- Re: [ietf-smtp] Curious, with this now being asso… Michael Peddemors
- Re: [ietf-smtp] Curious, with this now being asso… Dilyan Palauzov
- Re: [ietf-smtp] Curious, with this now being asso… Michael Richardson
- Re: [ietf-smtp] broken signatures, was Curious John R Levine
- Re: [ietf-smtp] Curious, with this now being asso… Hector Santos
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… Hector Santos
- Re: [ietf-smtp] broken signatures, was Curious John Levine
- Re: [ietf-smtp] broken signatures, was Curious Brandon Long
- Re: [ietf-smtp] broken signatures, was Curious Hector Santos
- Re: [ietf-smtp] broken signatures, was Curious John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… Pete Resnick
- Re: [ietf-smtp] Curious, with this now being asso… Pete Resnick
- Re: [ietf-smtp] broken signatures, was Curious Paul Smith
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] broken signatures, was Curious John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… Pete Resnick
- Re: [ietf-smtp] broken signatures, was Curious Michael Richardson
- Re: [ietf-smtp] broken signatures, was Curious Kurt Andersen (b)
- Re: [ietf-smtp] Curious, with this now being asso… Keith Moore
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] broken signatures, was Curious Dave Crocker
- Re: [ietf-smtp] broken signatures, was Curious Michael Richardson
- Re: [ietf-smtp] Curious, with this now being asso… Sam Varshavchik
- Re: [ietf-smtp] broken signatures, was Curious Hector Santos
- Re: [ietf-smtp] broken signatures, was Curious Hector Santos
- Re: [ietf-smtp] broken signatures, was Curious John R Levine
- Re: [ietf-smtp] broken signatures, was Curious John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… Keith Moore
- Re: [ietf-smtp] broken signatures, was Curious Dave Crocker
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin
- Re: [ietf-smtp] Curious, with this now being asso… Keith Moore
- Re: [ietf-smtp] broken signatures, was Curious Dilyan Palauzov
- Re: [ietf-smtp] Curious, with this now being asso… Alexey Melnikov
- Re: [ietf-smtp] Curious, with this now being asso… Alexey Melnikov
- Re: [ietf-smtp] Curious, with this now being asso… Ned Freed
- Re: [ietf-smtp] broken signatures, was Curious Alessandro Vesely
- Re: [ietf-smtp] broken signatures, was Curious John Levine
- Re: [ietf-smtp] broken signatures, was Curious John Levine
- Re: [ietf-smtp] broken signatures, was Curious Pete Resnick
- Re: [ietf-smtp] broken signatures, was Curious Dave Crocker
- Re: [ietf-smtp] broken signatures, was Curious Michael Richardson
- Re: [ietf-smtp] broken signatures, was Curious John R Levine
- Re: [ietf-smtp] broken signatures, was Curious John R Levine
- Re: [ietf-smtp] broken signatures, was Curious Pete Resnick
- Re: [ietf-smtp] broken signatures, was Curious John R Levine
- Re: [ietf-smtp] broken signatures, was Curious e sam
- Re: [ietf-smtp] broken signatures, was Curious Dave Crocker
- Re: [ietf-smtp] broken signatures, was Curious e sam
- Re: [ietf-smtp] broken signatures, was Curious Steve Atkins
- Re: [ietf-smtp] Curious, with this now being asso… John C Klensin