Re: [apps-discuss] Review of: draft-ietf-appsawg-malformed-mail-03
"John Levine" <johnl@taugh.com> Mon, 13 May 2013 15:40 UTC
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Date: Mon, 13 May 2013 15:39:32 -0000
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From: John Levine <johnl@taugh.com>
To: apps-discuss@ietf.org
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Subject: Re: [apps-discuss] Review of: draft-ietf-appsawg-malformed-mail-03
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>Eight bit data is far from something I'm expert on. Could I ask you to >write up a paragraph or three to include here, or replace what's here? These days, eight bit data in the message body is most likely just text. The tricky bit is figuring out what the encoding is. In my mail, the eight-bit characters I see most often are angled single and double quotes and other punctuation, typically in text that has been pasted in from a web browser or word processor. I also see accented characters, either in people's names or just to add élan. I gather that simple heuristics that check 8bit characters against various encodings of stuff likely to appear in text work pretty well, at least in mailstreams that are primarily in roman alphabet languages. In headers, you will see unencoded UTF-8 in mail that leaks from EAI mailstreams into normal mail. It is my impression that it is rare to see unencoded 8bit characters in any other encoding in headers. In both cases, it's much more likely to be a mistake than an attack. In 8.6, is it really a good idea to add missing date headers in an MTA? My impression is that most mail that makes it to your MTA without a date header isn't mail you want to read. R's, John
- [apps-discuss] Review of: draft-ietf-appsawg-malf… Dave Crocker
- [apps-discuss] Review of: draft-ietf-appsawg-malf… Dave Crocker
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Murray S. Kucherawy
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Ned Freed
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Murray S. Kucherawy
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… John Levine
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Ned Freed
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… John Levine
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Ned Freed
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… John R Levine
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Franck Martin
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Murray S. Kucherawy
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Murray S. Kucherawy
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Ned Freed
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… John R Levine
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Ned Freed
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Murray S. Kucherawy
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Ned Freed
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… John R Levine
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Ned Freed
- Re: [apps-discuss] Review of: draft-ietf-appsawg-… Murray S. Kucherawy
- [apps-discuss] Malformed mail (was Re: Review of:… Ned Freed
- Re: [apps-discuss] Malformed mail (was Re: Review… Barry Leiba
- Re: [apps-discuss] Malformed mail (was Re: Review… John Levine
- Re: [apps-discuss] Malformed mail (was Re: Review… Dave Crocker
- Re: [apps-discuss] Malformed mail (was Re: Review… Murray S. Kucherawy
- Re: [apps-discuss] Malformed mail (was Re: Review… Ned Freed