diff --git a/.gitattributes b/.gitattributes
index 76cc1a3a..7c7984fd 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -548,8 +548,8 @@ selenium/20120826-alternc-panel-testsuite.html -text
 selenium/README -text
 selenium/alternc.domain-local-mail-tld.html -text
 squirrelmail/Makefile -text
-squirrelmail/alternc-changepass/change.php -text
-squirrelmail/alternc-changepass/setup.php -text
+squirrelmail/alternc_changepass/change.php -text
+squirrelmail/alternc_changepass/setup.php -text
 squirrelmail/class/m_squirrelmail.php -text
 squirrelmail/squirrelmail-install -text
 squirrelmail/templates/apache2/squirrelmail.conf -text
diff --git a/install/alternc.install b/install/alternc.install
index 6d68a26d..cae9ece5 100644
--- a/install/alternc.install
+++ b/install/alternc.install
@@ -178,7 +178,7 @@ PUBLIC_IP_BEGIN=$(echo $PUBLIC_IP|cut -c 1)
 
 # XXX: I assume this is secure if /tmp is sticky (+t)
 # we should have a better way to deal with templating, of course.
-SED_SCRIPT=`mktemp`
+SED_SCRIPT="/tmp/alternc.install.sedscript"
 cat > $SED_SCRIPT <<EOF
 s\\%%hosting%%\\$HOSTING\\;
 s\\%%fqdn%%\\$FQDN\\;
diff --git a/squirrelmail/Makefile b/squirrelmail/Makefile
index 67e4b092..93cc523c 100644
--- a/squirrelmail/Makefile
+++ b/squirrelmail/Makefile
@@ -30,4 +30,4 @@ install:
 	# Desktop files
 	install -o 1999 -g 1999 -m 644 class/m_squirrelmail.php $(DESTDIR)/var/alternc/bureau/class/
 	# Squirrelmail Change Password Plugin
-	install -m 644 alternc-changepass/setup.php alternc-changepass/change.php $(DESTDIR)/usr/share/squirrelmail/plugins/alternc-changepass/
+	install -m 644 alternc_changepass/setup.php alternc_changepass/change.php $(DESTDIR)/usr/share/squirrelmail/plugins/alternc_changepass/
diff --git a/squirrelmail/alternc-changepass/change.php b/squirrelmail/alternc_changepass/change.php
similarity index 100%
rename from squirrelmail/alternc-changepass/change.php
rename to squirrelmail/alternc_changepass/change.php
diff --git a/squirrelmail/alternc-changepass/setup.php b/squirrelmail/alternc_changepass/setup.php
similarity index 100%
rename from squirrelmail/alternc-changepass/setup.php
rename to squirrelmail/alternc_changepass/setup.php
diff --git a/squirrelmail/squirrelmail-install b/squirrelmail/squirrelmail-install
index 1f8fc65e..df4eae98 100644
--- a/squirrelmail/squirrelmail-install
+++ b/squirrelmail/squirrelmail-install
@@ -27,10 +27,32 @@ then
     echo "Installing Squirrelmail Templates ..."
     cp -f /etc/alternc/templates/squirrelmail/avelsieve-config.php /etc/alternc/templates/squirrelmail/apache.conf /etc/squirrelmail/
     cp -f /etc/alternc/templates/javascript-common/javascript-common.conf /etc/javascript-common/
+    if [ -e /etc/alternc/templates/squirrelmail/alternc-changepass.conf ]; then
+	CONFIG_FILES="$CONFIG_FILES squirrelmail/alternc-changepass.conf"
+    fi
+
+    LOGIN="2000_squirrelmail"
+    PASSWORD="`perl -e 'print map{("a".."z","A".."Z",0..9)[int(rand(62))]}(1..10)'`"
+
+    # Add new variables to the sed script ...
+    SED_SCRIPT="/tmp/alternc.install.sedscript"
+    cat >> $SED_SCRIPT <<EOF
+s\\%%squirrelmail-login%%\\$LOGIN\\;
+s\\%%squirrelmail-password%%\\$PASSWORD\\;
+EOF
     echo "    Done"
-    
+
     . /usr/lib/alternc/functions.sh
-    
+
+    echo "giving write access to squirrelmail to the email password ..."
+    # cf alternc.install for more explanations on this horror : 
+    eval `sed -n -e "/=/{s/ *= *\"\?/='/;s/\"\?\$/'/;s/host/MYSQL_HOST/;s/user/MYSQL_USER/;s/password/MYSQL_PASS/;s/database/MYSQL_DATABASE/;p}" /etc/alternc/my.cnf`
+    # now database host user and password are mysql root account values ;) 
+    mysql_query "GRANT UPDATE (password) ON ${database}.address TO '$LOGIN'@'%' IDENTIFIED BY PASSWORD('$PASSWORD');"
+    mysql_query "GRANT SELECT ON ${database}.address TO '$LOGIN'@'%';"
+    mysql_query "GRANT SELECT ON ${database}.domaines TO '$LOGIN'@'%';"
+    echo "    Done"
+   
     echo "Setting squirrelmail domaintype"
     mysql_query "INSERT IGNORE INTO domaines_type (name ,description ,target ,entry ,compatibility ,enable ,only_dns ,need_dns ,advanced )VALUES ('squirrelmail','Squirrelmail Webmail access', 'NONE', '%SUB% IN A @@PUBLIC_IP@@', 'txt', 'ALL', '0', '0', '0');"
     echo "    Done"
diff --git a/squirrelmail/templates/squirrelmail/alternc-changepass.conf b/squirrelmail/templates/squirrelmail/alternc-changepass.conf
index 4b860e39..0d85c512 100644
--- a/squirrelmail/templates/squirrelmail/alternc-changepass.conf
+++ b/squirrelmail/templates/squirrelmail/alternc-changepass.conf
@@ -1,9 +1,10 @@
 <?php
 // This is the configuration file of AlternC-changepass plugin for Squirrelmail
-define("ALTERNC_CHANGEPASS_LOC","/var/alternc");
-define("ALTERNC_CHANGEPASS_MYSQL_HOST","localhost");
-define("ALTERNC_CHANGEPASS_MYSQL_USER","2000_squirrelmail");
-define("ALTERNC_CHANGEPASS_MYSQL_PASSWORD","een3ooCi");
-define("ALTERNC_CHANGEPASS_MYSQL_DB","alternc");
+// It is overwritten by alternc.install (precisely in squirrelmail-install subscript)
+
+define("ALTERNC_CHANGEPASS_LOC","%%ALTERNC_LOC%%");
+define("ALTERNC_CHANGEPASS_MYSQL_HOST","%%dbhost%%");
+define("ALTERNC_CHANGEPASS_MYSQL_USER","%%squirrelmail-login%%"); // 2000_squirrelmail
+define("ALTERNC_CHANGEPASS_MYSQL_PASSWORD","%%squirrelmail-pass%%"); // een3ooCi
+define("ALTERNC_CHANGEPASS_MYSQL_DB","%%dbname%%");
 
-?>
\ No newline at end of file