Re: [ietf-smtp] broken signatures, was Curious
John C Klensin <john-ietf@jck.com> Tue, 21 July 2020 20:48 UTC
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Date: Tue, 21 Jul 2020 16:48:25 -0400
From: John C Klensin <john-ietf@jck.com>
To: John Levine <johnl@taugh.com>
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Subject: Re: [ietf-smtp] broken signatures, was Curious
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John, While I mostly agree, we should not lose sight of the fact that there still people using the Internet in less-developed countries, isolated locations, over intermittent connections, etc., where bandwidth tends to be scarce and expensive Whatever they are using it for, it probably isn't dominated by high resolution video and, assuming we care about them, saying "well, it doesn't make a lot of difference to those who have essentially unlimited bandwidth and who are streaming lots of video, so no one and nothing else else counts" seems a unfortunate to me. In addition, if a possibly-legitimate, possibly-phishing, message comes along, I'd really like to see us (and our MUAs) encourage users to look at headers, understand what can be trusted and what can't, and so on. Perhaps the educational effort that would require is hopeless under the best of circumstances, but it is certainly impossible if we facilitate and encourage an ever-rising collection of noise header fields. john --On Tuesday, 21 July, 2020 16:19 -0400 John Levine <johnl@taugh.com> wrote: > In article > <20200721073749.Horde.BvL2fIPJNN50jFlj5GWcj_e@webmail.aegee.or > g> you write: >> As useless mail headers do make emails heavier, I am in >> favour of removing DKIM-Signature headers, that are known >> to be broken, e.g. because the current host has modified >> (and resubmitted) the message. > > The amount of bandwidth used by e-mail is a rounding error of > the Internet's total, which is mostly video these dayts, and > the amount used by broken headers is a rounding error on that > rounding error. > > Look at the headers of the mail in your inbox, particularly > mail from large providers, and you'll find megabytes of > headers that nobody is ever likely to look at or use. This > battle was over decades ago. > > R's, > John > > _______________________________________________ > ietf-smtp mailing list > ietf-smtp@ietf.org > https://www.ietf.org/mailman/listinfo/ietf-smtp
- [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