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Re: [Extra] New Version Notification for draft-bosch-sieve-eai-01.txt

John Levine <johnl@taugh.com> Thu, 27 May 2021 02:23 UTC

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From: "John Levine" <johnl@taugh.com>
To: extra@ietf.org
Cc: ned.freed@mrochek.com
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Subject: Re: [Extra] New Version Notification for draft-bosch-sieve-eai-01.txt
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It appears that Ned Freed  <ned.freed@mrochek.com> said:
>I'm afraid this document has a lot of probems, some of which may not be easy to
>resolve.
>
>The biggest problem by far is that the idea of invoking an extension in order to
>be able to process an EAI message is intrinsicly nonsensical: A message
>presented to the Sieve interpreter is either an EAI message or it's not, and
>there's nothing the Sieve interpreter or Sieve author can do to change that. (It
>may not even know if a given message was intended to be in EAI format - there's
>no reliable marker for this.) ...

Yup.  I think it might be possible to redo this draft as advice on what a sieve
implementation has to do to handle EAI mail, but your sieve code either handles
EAI mail, in which case it makes sense to let it process EAI messages, or it
doesn't, so the behavior with EAI messages is undefined.

R's,
John

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