[Dovecot] Custom 'quota exceeded' message + Sieve script from database

[Timo Sirainen]

On Sun, 2008-01-06 at 19:11 +0100, Przemyslaw Wegrzyn wrote:
> 1. Customized "quota exceeded" message.
> 
> http://czajnick.sitenet.pl/dovecot/dovecot_1.0.9_quota_exceeded_message.diff
> 
> - quick hack to let me define custom message instead of typical "Quota 
> exceeded", simply by using plugins { quota_exceeded_message = ... }. 
> Browsing this mailing list I've seen some posts about such feature being 
> implemented in Dovecot. Is it done in a similar way? Which stable 
> version is the first to include this functionality?

There's only a customizable rejection reason:

  # Human readable error message for rejection mails. Use can use variables:
  #  %n = CRLF, %r = reason, %s = subject, %t = recipient
  #rejection_reason = Your message to <%t> was automatically rejected:%n%r

The "Quota exceeded" is still not configurable. I guess maybe it could
be, since it's pretty much the only visible rejection reason and people
have been asking for it for so long.. For v1.1:
http://hg.dovecot.org/dovecot/rev/740a17139b67

> 2. Sieve filter modification
> 
> http://czajnick.sitenet.pl/dovecot/dovecot_sieve_1.0.2_envscript_patch.diff
..
> A minor drawback of such solution is that the script is re-compiled on 
> each delivery, but I don't think it takes much time to compile a few 
> lines of a script using (f)lex/bison-or-yacc parser. Yes, I've noticed 
> the sieve-manage patch, but I don't want the complexity of managing 
> sieve script over the socket connection (if my understanding of the 
> script is wrong, please correct me).

Managesieve's author is also writing a new Sieve implementation from
scratch. I'm hoping it eventually replaces the current dovecot-sieve,
but that patch doesn't look too invasive, so I guess I could include it.
Except for these:

sieve-cmu.c: In function 'dovecot_sieve_compile_buffer':
sieve-cmu.c:606: warning: passing argument 1 of 'sieve_generate_bytecode' from incompatible pointer type
sieve-cmu.c: In function 'cmu_sieve_run':
sieve-cmu.c:654: warning: passing argument 4 of 'dovecot_sieve_compile_buffer' from incompatible pointer type

I'm not sure why it even works. :)
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