Re: [ietf-822] utf8 messages

[Jan Kundrát <[e-mail]>]

My understanding is that Brandon's system previously required no 
out-of-band label at all. Whenever a message was processed in their 
infrastructure, they would use a single algorithm, and that algorithm 
contained some heuristic for dealing with messages which were using 8bit 
data in headers. Everything worked pretty well for them.

Now, the EAI introduced another syntax, and that syntax breaks their 
heuristics. Ned's suggestion is to make use of the out-of-band labeling and 
extend the heuristic to only apply the old crutches when the label says 
that this isn't an EAI message, while Brandon's complaint is that they use 
no such labeling at this time because it isn't required at all. Brandon 
also suggests that there are many other places which process these messages 
without the external metadata.

By "out-of-band" or "external", I mean what gets set in the ESMTP envelope.

Hope this helps, and please correct me if my understanding of your 
positions is not correct.

>From my point of view, it would be most interesting to see what happens 
when I deploy e.g. a Postfix version which understands this new RFC along 
with an older Dovecot which doesn't do it. Suddenly, an IMAP client is in 
the same position as Brandon describes because there's no way of accessing 
the ESMTP envelope through IMAP.

Cheers,
Jan

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