diff --git a/.gitattributes b/.gitattributes
index 1626d777..5c095e3c 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -586,6 +586,7 @@ squirrelmail/Makefile -text
 squirrelmail/alternc_changepass/change.php -text
 squirrelmail/alternc_changepass/setup.php -text
 squirrelmail/class/m_squirrelmail.php -text
+squirrelmail/procmail_to_sieve.php -text
 squirrelmail/squirrelmail-install -text
 squirrelmail/templates/apache2/squirrelmail.conf -text
 squirrelmail/templates/squirrelmail/alternc-changepass.conf -text
diff --git a/squirrelmail/procmail_to_sieve.php b/squirrelmail/procmail_to_sieve.php
new file mode 100755
index 00000000..3fb1d913
--- /dev/null
+++ b/squirrelmail/procmail_to_sieve.php
@@ -0,0 +1,234 @@
+<?php
+/*
+  AlternC - Web Hosting System
+  Copyright (C) 2002 by the AlternC Development Team.
+  http://alternc.org/
+  ----------------------------------------------------------------------
+  LICENSE
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License (GPL)
+  as published by the Free Software Foundation; either version 2
+  of the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  To read the license please visit http://www.gnu.org/copyleft/gpl.html
+  ----------------------------------------------------------------------
+  Purpose of file: Based on procmail-builder module, converts 
+  the procmail generated by AlternC<=1.0.3 to AlternC>=3.0
+  ----------------------------------------------------------------------
+*/
+
+/* ----------------------------------------------------------------- */
+/**
+   MAIN FUNCTION 
+   Read all the mail folders and search for .procmailrc's
+*/
+function procmail2sieve() {
+  global $ROOT;
+  $d=opendir($ROOT);
+  if ($d) {
+    while ($c=readdir($d)) {
+      if (substr($c,0,1)==".") continue; // skip hidden files
+      if (is_dir($ROOT."/".$c)) {
+	// Go to level 2.
+	$e=opendir($ROOT."/".$c);
+	if ($e) {
+	  while ($f=readdir($e)) {
+	    if (substr($f,0,1)==".") continue; // skip hidden files
+	    if (is_file($ROOT."/".$c."/".$f."/.procmailrc")) {
+	      // We found one .procmailrc, let's parse it on behalf of his user...
+	      parseOneProcmail($f);  /* ################## SUB FUNCTION ###################### */
+	    }
+	  }
+	  closedir($e);
+	}
+	
+      }
+    }
+    closedir($d);
+  }
+} /* procmail2sieve */
+
+
+
+/* ----------------------------------------------------------------- */
+/** Parse ONE procmailrc, and write its sieve rules
+ */
+function parseOneProcmail($user) {
+  global $SIEVEROOT;
+  if ($rules=readrules($user)) {   /* ################## SUB FUNCTION ###################### */
+    for($i=0; $i<count($rules); $i++) {
+      list($rules[$i]["conds"],$rules[$i]["actionparam"])=describe($rules[$i]);   /* ################## SUB FUNCTION ###################### */
+    }
+
+    // Now we have $rule["type"] = the ACTION to accomplish + (if 1 or 4) $actionparam
+    // and a list of $rule["conds"][0]=condition type & $rule["conds"][1]=condition parameter (if not 5)
+    // Let's write a sieve script :) 
+    $f=fopen($SIEVEROOT."/".$user,"wb");
+    if (!$f) {
+      echo "ERROR: Can't open '$user' in '$SIEVEROOT' for writing\n";
+    } else {
+      echo "OK: writing sieve script for $user (".count($rules)." rules)\n";
+      
+      // FIXME: DO IT :) 
+      
+      fclose($f);
+    }
+  } else {
+    echo "ERROR: can't read rules for $user\n";
+  }
+
+} /* parseOneProcmauil */
+
+
+
+/* ----------------------------------------------------------------- */
+/** Read rules, fill an array 
+    from m_procmail.php original file
+    yeah I know, ereg() is deprecated ;)
+*/
+function readrules($user="") {
+  if (!$user) $user=$this->user;
+  $u=substr($user,0,1);
+  if (!file_exists("/var/alternc/mail/$u/$user/.procmailrc")) {
+    return false;
+  }
+  $f=fopen("/var/alternc/mail/$u/$user/.procmailrc","rb");
+  $state=0;	$rulenum=0;	$ligne=0;
+  $res=array();
+  while (!feof($f)) {
+    $found=false; // found allow us to know if we found something for each loop
+    $s=fgets($f,1024);
+    $s=trim($s);
+    if ($state==1 && !ereg("^# RuleEnd$",$s)) {
+      $res[$rulenum]["rule"][$res[$rulenum]["count"]++]=$s;
+      $found=true;
+    }
+    if ($state==1 && ereg("^# RuleEnd$",$s)) { 
+      $state=0;
+      $rulenum++;
+      $found=true;
+    }
+    if ($state==0 && ereg("^# RuleType ([0-9][0-9]) -- (.*)?$",$s,$r)) {
+      $state=1;
+      $res[$rulenum]["type"]=$r[1];
+      $res[$rulenum]["name"]=$r[2];
+      $res[$rulenum]["count"]=0;
+      $found=true;
+    }
+    if (!$found && $state!=0) {
+      return false;
+    }
+    $ligne++;
+  }
+  fclose($f);
+  return $res;
+}
+
+
+/* ----------------------------------------------------------------- */
+/** Take ONE rule array, extract properly 
+    returns one array with the conditions (which are arrays with Condition Type and Value)
+    and the action parameter
+*/
+function describe($rule) {
+
+  // Lecture des conditions : 
+  $cond=array();
+  switch ($rule["type"]) {
+  case 5: 
+    $i=1;
+    while ($rule["rule"][$i]!="* !^FROM_DAEMON" && $rule["rule"][$i]!="") {
+      $cond[]=$rule["rule"][$i];
+      $i++;
+    }
+    break;
+  default:
+    $i=1;
+    while (substr($rule["rule"][$i],0,1)=="*") {
+      $cond[]=$rule["rule"][$i];
+      $i++;
+    }
+    break;
+  }
+
+  // $cond is an array of conditions
+  // let's parse the condition : (see arrays at the top of this file)
+  $conds=array();
+
+  for($i=0;$i<count($cond);$i++) {
+    if (ereg("^\\* \\^Subject\\.\\*(.*)$",$cond[$i],$t)) {
+      $conds[]=array( 0, $t[1] );
+    }
+    if (ereg("^\\* \\^From\\.\\*(.*)$",$cond[$i],$t)) {
+      $conds[]=array( 1, $t[1] );
+    }
+    if (ereg("^\\* \\^TO_(.*)$",$cond[$i],$t)) {
+      $conds[]=array( 2, $t[1] );
+    }
+    if (ereg("^\\* \\^List-Post: (.*)$",$cond[$i],$t)) {
+      $conds[]=array( 3, $t[1] );
+    }
+    if (ereg("^\\* \\^List-Id: (.*)$",$cond[$i],$t)) {
+      $conds[]=array( 4, $t[1] );
+    }
+    if (ereg("^\\* \\^X-Spam-Status: Yes$",$cond[$i])) {
+      $conds[]=array( 5 );
+    }
+    if (ereg("^\\* \\^Delivered-To:\\.\\*(.*)$",$cond[$i],$t)) {
+      $conds[]=array( 6, $t[1] );
+    }
+  }
+    
+  // Action :
+  $actionparam=false;
+  switch ($rule["type"]) {
+  case 1: 
+    $actionparam=$rule["rule"][count($rule["rule"])-2]; /* Folder */
+    break;
+  case 4:
+    $actionparam = substr($rule["rule"][count($rule["rule"])-2],0,15); /* Recipient */
+    break;
+  }
+  return array($conds,$actionparam);
+}
+
+
+
+
+
+
+
+
+/* Help for humans ... */
+
+$acriteria=array(
+		 0 => "Le sujet du message contient ...",
+		 1 => "L'expéditeur du message est contient ...", 
+		 2 => "L'un des destinataires du message contient ...", 
+		 3 => "L'en-tete 'List-Post' du message est ...", 
+		 4 => "L'en-tete 'List-Id' du message est ...", 
+		 5 => "SpamAssassin considère qu'il s'agit d'un Spam", 
+		 6 => "L'en-tete 'Delivered-To' du message contient ...", 
+		 );
+$aactions=array(
+		1 => "Move the message to this folder",
+		2 => "Filter the message through SpamAssassin",
+		3 => "Discard the message (for good !)",
+		4 => "Forward the mail to",
+		5 => "Auto-reply",
+		);
+
+
+/* ----------------------------------------------------------------- */
+// CONFIGURATION : 
+$ROOT="/var/alternc/mail";
+$SIEVEROOT="/var/lib/dovecot/sieve";
+// GO !
+procmail2sieve();
+