I’m trying to make use of sieve by means of the Dovecot LDA Wiki - http://wiki.dovecot.org/LDA. Looking at maillog, mail is being delivered by means of deliver to the right user:

Jan 22 16:05:31 gateway sm-mta[17258]: STARTTLS=server, relay=[10.0.0.100], version=TLSv1/SSLv3, verify=NO, cipher=DHE-RSA-AES256-SHA, bits=256/256 Jan 22 16:05:32 gateway sm-mta[17258]: k0MF5VJ2017258: from=<bjorn@hydroxide.nl>, size=354, class=0, nrcpts=1, msgid=<43D39F31.3080502@hydroxide.nl>, proto=ESMTP, daemon=MTA, relay=[10.0.0.100] Jan 22 16:05:32 gateway sm-mta[32229]: k0MF5VJ2017258: to=| "/usr/local/libexec/dovecot/deliver", ctladdr=<test@hydroxide.nl> (1000/1000), delay=00:00:00, xdelay=00:00:00, mailer=prog, pri=30633, dsn=2.0.0, stat=Sent

Unfortunately .dovecot.sieve is left alone and thus nothing is being sorted.

Any suggestions maybe?