===== Gnarwl =====

Download GNARWL software from http://www.home.unix-ag.org/patrick/index.php?gnarwl and download package named gnarwl-3.3.tgz \\ 
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==== Compile GNARWL for LDAP vacations ====

  # tar xzvf gnarwl-3.3.tgz
  # cd gnarwl-3.3
  # ./configure
  # make
  # make install
  # make perm

==== Adjust File /usr/local/etc/gnarwl.conf ====
  map_sender $sender
  map_receiver $recepient
  map_subject $subject
  map_field $fullname cn
  map_field $deputy mail
  server localhost
  port 389
  scope sub
  login cn=admin,dc=example,dc=org
  password IveGotASecret
  protocol 3
  base dc=example,dc=org
  queryfilter (|(mail=$recepient)(gosaMailAlternateAddress=$recepient))
  result gosaVacationMessage
  blockfiles /usr/local/var/lib/gnarwl/block/
  umask 0644
  blockexpire 0
  mta /usr/sbin/sendmail -F $recepient -t $sender
  maxreceivers 64
  maxheader 512
  <del>charset ISO8859-1</del>
  charset utf-8
  badheaders /usr/local/var/lib/gnarwl/badheaders.db
  blacklist /usr/local/var/lib/gnarwl/blacklist.db
  forceheader /usr/local/var/lib/gnarwl/header.txt
  forcefooter /usr/local/var/lib/gnarwl/footer.txt
  recvheader To Cc
  loglevel 3

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==== Configuring Postfix in /etc/postfix/master.cf file ====

Make sure that you have the following lines:

  smtps inet n - n - - smtpd
   -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes
  
  submission inet n - n - - smtpd
   -o smtpd_enforce_tls=yes -o smtpd_sasl_auth_enable=yes -o smtpd_etrn_restrictions=reject
  
  **ACHTUNG an Cyrus anpassen:**
  [L] unix - n n - - pipe
   flags=DRhu user=vmail argv=/usr/local/bin/maildrop -w 80 -d ${recipient}
  
  [VL] unix - n n - - pipe
   flags=F user=adminvac argv=/usr/local/bin/fork_vacation.sh $sender $recipient

==== Create the file /usr/local/bin/fork_vacation.sh ====

  #!/bin/bash
  
  ORIGIN="$1"
  DESTINY="$2"
  
  **ACHTUNG an Cyrus anpassen:** /usr/bin/sudo -u vmail /usr/local/bin/maildrop -w 90 -d $DESTINY
  /usr/bin/sudo -u gnarwl /usr/local/bin/gnarwl -s $ORIGIN -a $DESTINY

==== Set permissions to /usr/local/bin/fork_vacation.sh ====

  # chmod 755 /usr/local/bin/fork_vacation.sh

==== Create user adminvac with sudo for execute the vacation binary ====

  # adduser adminvac
  # vi /etc/sudoers
   
  adminvac ALL=(ALL) NOPASSWD: ALL
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