[Dovecot] sieve problem email silently discard

[ml at smtp.fakessh.eu]

Le dimanche 3 juillet 2011 23:57, Stephan Bosch a écrit :
> On 07/03/2011 10:22 PM, ml at smtp.fakessh.eu wrote:
> > I met a few times the problem or an email that passes through a sieve
> > script is silently discard
> > after delivery but never returned to the inbox
> >
> > all testimonials are welcome
>
> [...]
>
> > plugin {
>
> [...]
>
> >   plugin = $mail_plugins  autocreate managesieve  sieve
> >   sieve = ~/.dovecot.sieve
> >   sieve_before = /var/sieve-scripts/roundcube.sieve
> >   sieve_dir = ~/sieve
> >   sieve_global_path = whatever
> > }
>
> [...]
>
> > egrep lda /var/Log/maillog
>
> [...]
>
> > 2011-07-03 19:47:15lda(fakessh): Debug: sieve: executed before user's
> > script(1): /var/sieve-scripts/roundcube.sieve
>
> [...]
>
> > 2011-07-03 19:47:15lda(fakessh): Debug: sieve: executing script
> > from /var/sieve-scripts/roundcube.svbin
> > 2011-07-03 19:47:15lda(fakessh): Info: sieve:
> > msgid=<6EBEE5FC-62B1-4C73-B26E-DEBFD6E26DB6 at shorewall.net>: marked
> > message to be discarded if not explicitly delivered (discard action)
>
> I would not call this a silent discard: it is reported in the log above.
> Also, the contents of roundcube.sieve that you showed in an earlier
> thread contained a single discard action, which is therefore the only
> likely culprit. Now the question boils down to: why is this discard
> action triggered? The interesting part of the script is the following:
>
> require ["comparator-i;ascii-numeric","relational"];
> if header :value "ge" :comparator "i;ascii-numeric"
> ["X-Spam-score"]["500"]
> {
>   discard;
>   stop;
> }
>
> Since the message is discarded, it will most likely be impossible to
> retrieve that message and check why it fires this rule. The relatively
> innocent situation would be that your Spam filter truly produces this
> interesting score of > 500. A less innocent case would be a bug in the
> Sieve interpreter. Either way, we need to have access to one of those
> messages that triggers this rule and gets discarded without apparent
> reason.
>
> My suggestion is to replace that `discard;' action with a `fileinto
>
> :create "Debug";' action (:create creates the folder implicitly; depends
>
> on mailbox extension require) to file messages that would normally be
> discarded into a special folder for later evaluation. Alternatively, you
> can redirect such messages to a special mail account.
>
> Only then can we trace this problem any deeper.
>
> Regards,
>
> Stephan.


thanks Stephan

I just change my sieve script by removing the implicit discard 
a fileinto :create "Junk.spam.spam"


until next time



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