[Users] mixed search server error

[Christian Hesse]

Andrej Kacian <ticho at claws-mail.org> on Fri, 2018/12/14 01:22:
> On Thu, 13 Dec 2018 23:12:01 +0100
> Christian Hesse wrote:
> 
> > Hello everybody,
> > 
> > starting a mixed search (choose "From/To/Cc/Subject/Tag" in quick search
> > bar) makes claws-mail pop up a number of messages on one of my accounts:
> > 
> > Search failed due to server error.
> > 
> > The network log gives:
> > 
> > [23:09:51] IMAP> 8 UID SEARCH KEYWORD x
> > [23:09:51] IMAP< 8 BAD Command Argument Error. 11
> > ** IMAP error on mail.example.com: protocol error (very probably
> > non-RFC compliance from the server)
> > ** IMAP connection broken
> > 
> > I think this is because the server does not support client defined
> > keywords in flags. Any chance to fix this?
> > 
> > https://tools.ietf.org/html/rfc3501#section-2.3.2  
> 
> There was a bit of a discussion, albeit inconclusive, about it on this
> ML in August, see
> https://lists.claws-mail.org/pipermail/users/2018-August/022393.html

Damn, I missed that discussing and it is already purged from my inbox.
However, citing the RFC:

> A keyword is defined by the server implementation.  Keywords do not
> begin with "\".  Servers MAY permit the client to define new keywords
> in the mailbox (see the description of the PERMANENTFLAGS response
> code for more information).

So this is optional and should not result in an error.

The server gives PERMANENTFLAGS indeed:

[07:56:58] IMAP< * OK [PERMANENTFLAGS (\Seen \Answered \Flagged \Deleted
\Draft $MDNSent)] Permanent flags

So this is something to take into consideration...
-- 
main(a){char*c=/*    Schoene Gruesse                         */"B?IJj;MEH"
"CX:;",b;for(a/*    Best regards             my address:    */=0;b=c[a++];)
putchar(b-1/(/*    Chris            cc -ox -xc - && ./x    */b/42*2-3)*42);}
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