[Dovecot] Error in IMAP command UID: Unknown thread algorithm.

[Timo Sirainen]

On Tue, 2009-04-28 at 09:50 +0200, Ralf Hildebrandt wrote:
> Our Squirrelmail offers "Thread based sorting".
> Now, I have one user, where the activation of thread sorting results in:
> 
> FEHLER: Falsche oder ungültige Anfrage.
> Anfrage: THREAD ORDEREDSUBJECT ISO-8859-1 ALL
> Server antwortete: Error in IMAP command UID: Unknown thread algorithm.
> 
> Why is that?

No one really wants "orderedsubject" threading. Squirrelmail supports
also "references" threading and that should work better.

This is actually the first time ever anyone has mentioned Dovecot's lack
of orderedsubject support.
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