[Dovecot] dovecot-sieve with FreeBSD

[Rui Lopes]

Hi,

Peter Bauer wrote:
> Hello,
> 
> I've a test system with postfix (SMTP), dovecot (IMAP only) and covecot-LDA (MDA) under FreeBSD-6.1. Currently everything works fine. But I wasn't able to install dovecot-sieve from the CVS. Does anyone has a small documentation howto install dovecot-sieve on FreeBSD.


Here are my little notes I've wrote while installing and testing.  I'm 
still testing though, so, if you (or anyone else ;) find anything wrong, 
have questions, give feedback!


== Sieve plugin for dovecot LDA

* libsieve comes from the cyrus imap server (mail/cyrus-imapd23)


Obtain the sieve plugin from CVS:

   cvs -d :pserver:anonymous at dovecot.org:/home/cvs co dovecot-sieve


On FreeBSD change the autogen.sh file contents to:

# using automake19, autoconf259, and libtool15 ports.
aclocal19 -I /usr/local/share/aclocal
autoheader259
libtoolize --force
automake19 --add-missing
autoconf259

Then, run it:

   ./autogen.sh


Install this sieve plugin:

   # NB: Before you continue, make sure you didn't clean the dovecot
   #     port when you've build it, eg: built it using:
   #
   #       cd /usr/ports/mail/dovecot/ && make install
   #
   #     You can clean it after you've build the sieve plugin though.

   ./configure \
     --prefix=/usr/local \
     --with-dovecot=/usr/ports/mail/dovecot/work/dovecot-1.0.rc7
   make install


Configure dovecot to use the sieve plugin:

   vim /usr/local/etc/dovecot.conf
protocol lda {
   ...
   mail_plugins = cmusieve # ... other plugins
   ...
}


Make a test sieve script:

   cat <<"EOF" > /var/vmail/two.example.com/rgl/.dovecot.sieve
require ["fileinto", "reject", "vacation"];
# * A sieve script is UTF-8 encoded.
#
# * folders are automatically created by the "fileinto" action.
#
# * By default (when no :comparator argument is given) all string
#   comparations are case-insensitive (in the ASCII range;
#   :comparator "i;ascii-casemap").
#   See the "2.7.3.   Comparators" section at
#   http://www.ietf.org/internet-drafts/draft-ietf-sieve-3028bis-09.txt
#
# See sieve information at
#   http://www.ietf.org/html.charters/sieve-charter.html
# For "vacation" see
#   http://ietfreport.isoc.org/idref/draft-ietf-sieve-vacation/


# Moved SPAM marked messages to the Spam folder and stop processing.
if header "X-Spam-Flag" "YES" {
   fileinto "Spam";
   stop;
}

# Move all mailer-daemon@ into a subfolder
if header
   :contains
     ["To", "Cc", "Bcc", "Reply-To", "In-Reply-To"]
     [
       "mailer-daemon at two.example.com",
       "mailer-daemon at example.com",
       "mailer-daemon at turbina.example.com"
     ] {
   fileinto "mailer-daemon";
   stop;
}

# OR, using :matches:

if header
   :matches
     ["To", "Cc", "Bcc", "Reply-To", "In-Reply-To"]
     ["mailer-daemon@*"] {
   fileinto "mailer-daemon";
   stop;
}

# move all mail @foxie.example.com to a subfolder.
if header :matches "To" "*@foxie.example.com" {
   fileinto "foxie";
   stop;
}


# Some misc. tests follow.

if header :contains "subject" ["test1", "test3"] {
   fileinto "test-odd";
} elsif header :contains "subject" ["test2", "test4"] {
   fileinto "test-even";
} elsif header "subject" "reject" {
   reject "reject test!";
} elsif header "subject" "discard" {
   # discarded message are silently droped.
   discard;
} elsif header "subject" "redirect" {
   # this will redirect the message to "root" user, without storing the
   # message in our mailbox.
   # NB: Because, in my case, the "postmaster" is an alias to this same
   #     mailbox, so we also test the loop prevention mechanism of
   #     dovecot LDA.
   #     AND in this case we will NOT receive any message on our email
   #     box.
   #     sent emails ids are stored inside ~/.dovecot.lda-dupes
   redirect "postmaster at two.example.com";
} elsif header "subject" "redirect to bob" {
   redirect "bob at two.example.com";
} elsif header "subject" "vacation" {
   # sent emails ids are stored inside ~/.dovecot.lda-dupes in order to
   # detect loops.
   # List of auto replied senders are also stored here in order to
   # prevent multiple replies to the same sender for a given period of
   # time (defaults to 7 days [see src/libsieve/sieve.y];  min is 1 day,
   # max is 31 days)
   vacation "I'm out!  I'll reply when I get back";
}
EOF

NB: Errors on the sieve script are reported on the maillog and in a
     file named .dovecot.sieve.err near the normal .dovecot.sieve.


# In this little "tests", I have several test mailboxes, like
# rgl at two.example.com, alice at two.example.com, etc, which are handled by
# dovecot LDA with a sieve script.

   printf 'Subject: test1\n\ntesting!\n' | sendmail rgl at two.example.com

   printf 'Subject: reject\n\ntesting!\n' | sendmail rgl at two.example.com

   printf 'Subject: discard\n\ntesting!\n' | sendmail rgl at two.example.com

   printf 'Subject: redirect\n\ntesting!\n' \
     | sendmail -f alice at two.example.com rgl at two.example.com

   printf 'Subject: redirect to bob\n\ntesting!\n' \
     | sendmail -f alice at two.example.com rgl at two.example.com

   printf 'Subject: test2\nX-Spam-Status: Yes\n\ntesting!\n' \
     | sendmail rgl at two.example.com

   printf 'Subject: vacation\n\ntesting!\n' \
     | sendmail -f alice at two.example.com rgl at two.example.com


HTH,
Rui Lopes