Re: [Evolution] Unicode / UTF-8 in Headers

[Neil Romig <courier countrybusdevon co uk>]

On Thu, 2018-10-04 at 09:29 +0200, Milan Crha via evolution-list wrote:
>       Hi,
>
> On Thu, 2018-10-04 at 07:25 +0100, Neil Romig wrote:
>
> I imported the message from a file (didn't think to try that) to "On
> This Computer" and it displays nearly perfectly - the aircraft is
> incorrectly oriented (E rather than NE - a font issue?) in the header
> details of the message pane.
>
> Yeah, I guess so, it'll be a font thing.
>
>
> If I import it into my regular mail account the import fails. So the
> issue looks to be communication between Courier and Evolution.
>
> I suppose you initially received the message through IMAP. Could you
> find the message in the local cache, please? It might look
> differently
> than the one you sent me privately. You can find it under:
>    ~/.cache/evolution/mail/<imap-account-uid>/folders/.....
> I'd search the files for something unique, like the message ID header
> value, which contains "20180927174114.0DEFF2027154@" (quotes for
> clarity only) in the message you sent me.
>
> I've some ancient versions of IMAP servers and I tried the message
> there, by drag&dropping the test message from an On This Computer
> folder to the respective account folder and this is the result:
> both dovecot 2.2.18 and courier 0.75.0 show the message properly,
> cyrus
> 2.4.17 replaced those Unicode letters with XXXX and XXXXXX
> respectively. Thus in case of Cyrus it was the server decision, not
> the
> client decision. My versions are very ancient, maybe your (I suppose)
> more recent Courier also does some modifications to the message, as
> you
> suggested.
>
>       Bye,
>       Milan
>
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Milan,

In this case the message does not make it into local cache. Courier
finds some error when it communicates with Evolution and sends a
"placeholder" (don't ask me for more details - I am not familiar with
the code!). I feel sure that if it had, it would display correctly just
like the local copy in "On My Computer".

Not sure what's changed between Courier 0.75 and 1.0 - but one of the
features of the Courier 1.0 release was implementing Unicode email...

Neil.