Re: Messages from the ietf list for the week ending Sun Aug 16 14:36:38 2020
tom petch <daedulus@btconnect.com> Mon, 17 August 2020 09:44 UTC
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Subject: Re: Messages from the ietf list for the week ending Sun Aug 16 14:36:38 2020
To: "Andrew G. Malis" <agmalis@gmail.com>, John Levine <johnl@iecc.com>
References: <20200816183616.82404.qmail@submit.iecc.com> <CAA=duU2EvupW-+w0QLTBKZN2WRkyTrs7Zv8nZLhzg4vhYNv6+A@mail.gmail.com>
Cc: IETF Discussion <ietf@ietf.org>
From: tom petch <daedulus@btconnect.com>
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Date: Mon, 17 Aug 2020 10:43:57 +0100
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On 16/08/2020 19:58, Andrew G. Malis wrote: > On Sun, Aug 16, 2020 at 2:37 PM John Levine <johnl@iecc.com> wrote: >> >> 1 | 3014 | Wes Hardaker <wjhns1@hardakers.net> > > Is it HTML formatting, bottom quoting, or email header explosion (or some > combination of the above) that leads the smallest individual email on the > list this past week to be 3014 bytes in length? (I didn't bother to average > the email lengths from multi-posters). > > For what it's worth, I'm trying to send this without formatting and with > minimal quoting to see how small I can get it. Now I have to try to refrain > from posting anything else on the list this week ... :-) Andrew, e-mail header explosion by the ESP in part, HTML in part. The plain text announcement of an RFC on the announce list is 2kbyte to 3kbyte. In 2012, that was up to 6kbyte by the time I received it. In 2013 that jumped to 9kbyte and in 2015 to 12kbyte and in 2016 to 16kbyte. In 2019, it went down to 11kbyte. The difference is mostly in the x- headers with X-Microsoft-Antispam-Message-Info being enormous. HTML varies a lot. Your message reached me as 13423byte; removing HTML takes that down to 12193byte while removing the X- headers cuts that to 6207byte. At the MSA stage it was probably 1270byte if it were plain text only. BUT this message is a very conservative use of HTML. Some MUA like to include the Microsoft style sheet which can expand a message from 10kbyte to over 100kbyte - yes, one hundred. As a rule of thumb I would say that a multipart alternative with HTML is about twice the size of a plain text message. I select the MUA option of plain text and think that the security of the IETF system, and the usability of web mail, would be improved if that were mandatory:-) HTH Tom Petch > > Cheers, > Andy >
- Messages from the ietf list for the week ending S… John Levine
- Re: Messages from the ietf list for the week endi… Andrew G. Malis
- Re: Messages from the ietf list for the week endi… tom petch
- Re: Messages from the ietf list for the week endi… tom petch
- Re: Messages from the ietf list for the week endi… Salz, Rich
- Re: Bloated messages from the ietf list for the w… John R. Levine
- Re: Bloated messages from the ietf list for the w… Carsten Bormann
- Re: Messages from the ietf list for the week endi… Warren Kumari
- Re: Messages from the ietf list for the week endi… Andrew G. Malis