diff --git a/program/include/rcube_json_output.php b/program/include/rcube_json_output.php
index 7c79157fd..2fbf9c0c5 100644
--- a/program/include/rcube_json_output.php
+++ b/program/include/rcube_json_output.php
@@ -33,6 +33,7 @@ class rcube_json_output
     private $env = array();
     private $texts = array();
     private $commands = array();
+    private $message = null;
 
     public $type = 'js';
     public $ajax_call = true;
@@ -146,15 +147,19 @@ class rcube_json_output
      * @param string Message to display
      * @param string Message type [notice|confirm|error]
      * @param array Key-value pairs to be replaced in localized text
+     * @param boolean Override last set message
      * @uses self::command()
      */
-    public function show_message($message, $type='notice', $vars=null)
+    public function show_message($message, $type='notice', $vars=null, $override=true)
     {
-        $this->command(
-            'display_message',
-            rcube_label(array('name' => $message, 'vars' => $vars)),
-            $type
-        );
+        if ($override || !$this->message) {
+            $this->message = $message;
+            $this->command(
+                'display_message',
+                rcube_label(array('name' => $message, 'vars' => $vars)),
+                $type
+            );
+        }
     }
     
     /**
diff --git a/program/include/rcube_template.php b/program/include/rcube_template.php
index 307bd84d7..6ceb9ce2d 100755
--- a/program/include/rcube_template.php
+++ b/program/include/rcube_template.php
@@ -34,6 +34,7 @@ class rcube_template extends rcube_html_page
     var $config;
     var $framed = false;
     var $pagetitle = '';
+    var $message = null;
     var $env = array();
     var $js_env = array();
     var $js_commands = array();
@@ -225,14 +226,18 @@ class rcube_template extends rcube_html_page
      * @param string Message to display
      * @param string Message type [notice|confirm|error]
      * @param array Key-value pairs to be replaced in localized text
+     * @param boolean Override last set message
      * @uses self::command()
      */
-    public function show_message($message, $type='notice', $vars=NULL)
+    public function show_message($message, $type='notice', $vars=null, $override=true)
     {
-        $this->command(
-            'display_message',
-            rcube_label(array('name' => $message, 'vars' => $vars)),
-            $type);
+        if ($override || !$this->message) {
+            $this->message = $message;
+            $this->command(
+                'display_message',
+                rcube_label(array('name' => $message, 'vars' => $vars)),
+                $type);
+        }
     }
 
 
diff --git a/program/include/rcube_user.php b/program/include/rcube_user.php
index 9d4d67589..9d5cc5fc0 100644
--- a/program/include/rcube_user.php
+++ b/program/include/rcube_user.php
@@ -368,7 +368,7 @@ class rcube_user
        VALUES (".$dbh->now().", ".$dbh->now().", ?, ?, ?, ?)",
       strip_newlines($user),
       strip_newlines($host),
-      strip_newlines($user_email),
+      strip_newlines($data['alias'] ? $data['alias'] : $user_email),
       $_SESSION['language']);
 
     if ($user_id = $dbh->insert_id(get_sequence_name('users')))
diff --git a/program/steps/addressbook/delete.inc b/program/steps/addressbook/delete.inc
index df1e4073e..6ab9cc3df 100644
--- a/program/steps/addressbook/delete.inc
+++ b/program/steps/addressbook/delete.inc
@@ -24,7 +24,9 @@ if (($cid = get_input_value('_cid', RCUBE_INPUT_POST)) &&
      preg_match('/^[a-zA-Z0-9=]+(,[a-zA-Z0-9=]+)*$/', $cid))
    )
   {
-  $deleted = $CONTACTS->delete($cid);
+  $plugin = $RCMAIL->plugins->exec_hook('delete_contact', array('id' => $cid, 'source' => get_input_value('_source', RCUBE_INPUT_GPC)));
+  
+  $deleted = !$plugin['abort'] ? $CONTACTS->delete($cid) : false;
   if (!$deleted)
     {
     // send error message
diff --git a/program/steps/addressbook/save.inc b/program/steps/addressbook/save.inc
index 07f74602c..3b01a9be7 100644
--- a/program/steps/addressbook/save.inc
+++ b/program/steps/addressbook/save.inc
@@ -52,7 +52,10 @@ foreach ($a_save_cols as $col)
 // update an existing contact
 if (!empty($cid))
 {
-  if ($CONTACTS->update($cid, $a_record))
+  $plugin = $RCMAIL->plugins->exec_hook('save_contact', array('id' => $cid, 'record' => $a_record, 'source' => get_input_value('_source', RCUBE_INPUT_GPC)));
+  $a_record = $plugin['record'];
+  
+  if (!$plugin['abort'] && $CONTACTS->update($cid, $a_record))
   {
     // define list of cols to be displayed
     $a_js_cols = array();
@@ -65,13 +68,13 @@ if (!empty($cid))
     $OUTPUT->command('parent.update_contact_row', $cid, $a_js_cols);
       
     // show confirmation
-    $OUTPUT->show_message('successfullysaved', 'confirmation');    
+    $OUTPUT->show_message('successfullysaved', 'confirmation', null, false);
     rcmail_overwrite_action('show');
   }
   else
   {
     // show error message
-    $OUTPUT->show_message('errorsaving', 'error');
+    $OUTPUT->show_message('errorsaving', 'error', null, false);
     rcmail_overwrite_action('show');
   }
 }
@@ -85,13 +88,16 @@ else
   // show warning message
   if ($existing->count)
   {
-    $OUTPUT->show_message('contactexists', 'warning');
+    $OUTPUT->show_message('contactexists', 'warning', null, false);
     rcmail_overwrite_action('add');
     return;
   }
 
+  $plugin = $RCMAIL->plugins->exec_hook('create_contact', array('record' => $a_record, 'source' => get_input_value('_source', RCUBE_INPUT_GPC)));
+  $a_record = $plugin['record'];
+
   // insert record and send response
-  if ($insert_id = $CONTACTS->insert($a_record))
+  if (!$plugin['abort'] && ($insert_id = $CONTACTS->insert($a_record)))
   {
     // add contact row or jump to the page where it should appear
     $CONTACTS->reset();
@@ -105,14 +111,14 @@ else
     $OUTPUT->command('parent.set_rowcount', rcmail_get_rowcount_text());
 
     // show confirmation
-    $OUTPUT->show_message('successfullysaved', 'confirmation');
+    $OUTPUT->show_message('successfullysaved', 'confirmation', null, false);
     rcmail_overwrite_action('show');
     $_GET['_cid'] = $insert_id;
   }
   else
   {
     // show error message
-    $OUTPUT->show_message('errorsaving', 'error');
+    $OUTPUT->show_message('errorsaving', 'error', null, false);
     rcmail_overwrite_action('add');
   }
 }
diff --git a/program/steps/settings/delete_identity.inc b/program/steps/settings/delete_identity.inc
index a72a8a7d8..97c16d578 100644
--- a/program/steps/settings/delete_identity.inc
+++ b/program/steps/settings/delete_identity.inc
@@ -21,11 +21,13 @@
 
 if (($ids = get_input_value('_iid', RCUBE_INPUT_GET)) && preg_match('/^[0-9]+(,[0-9]+)*$/', $ids))
 {
-  if ($USER->delete_identity($ids)) {
-    $OUTPUT->show_message('deletedsuccessfully', 'confirmation');
+  $plugin = $RCMAIL->plugins->exec_hook('delete_identity', array('id' => $ids));
+  
+  if (!$plugin['abort'] && $USER->delete_identity($ids)) {
+    $OUTPUT->show_message('deletedsuccessfully', 'confirmation', null, false);
   }
   else {
-    $OUTPUT->show_message('nodeletelastidentity', 'error');
+    $OUTPUT->show_message('nodeletelastidentity', 'error', null, false);
   }
   // send response
   if ($OUTPUT->ajax_call)
diff --git a/program/steps/settings/save_identity.inc b/program/steps/settings/save_identity.inc
index dba385f49..754e86c55 100644
--- a/program/steps/settings/save_identity.inc
+++ b/program/steps/settings/save_identity.inc
@@ -60,7 +60,11 @@ if (IDENTITIES_LEVEL == 1 || IDENTITIES_LEVEL == 3)
 // update an existing contact
 if ($_POST['_iid'])
 {
-  if ($updated = $USER->update_identity(get_input_value('_iid', RCUBE_INPUT_POST), $save_data))
+  $iid = get_input_value('_iid', RCUBE_INPUT_POST);
+  $plugin = $RCMAIL->plugins->exec_hook('save_identity', array('id' => $iid, 'record' => $save_data));
+  $save_data = $plugin['record'];
+
+  if (!$plugin['abort'] && ($updated = $USER->update_identity($iid, $save_data)))
   {
     $OUTPUT->show_message('successfullysaved', 'confirmation');
     
@@ -73,10 +77,10 @@ if ($_POST['_iid'])
       // ...      
     }
   }
-  else if ($DB->is_error())
+  else if ($plugin['abort'] || $DB->is_error())
   {
     // show error message
-    $OUTPUT->show_message('errorsaving', 'error');
+    $OUTPUT->show_message('errorsaving', 'error', null, false);
     rcmail_overwrite_action('edit-identity');
     return;
   }
@@ -88,9 +92,12 @@ else if (IDENTITIES_LEVEL < 2)
   if (IDENTITIES_LEVEL == 1)
     $save_data['email'] = $RCMAIL->user->get_username();
 
-  if ($save_data['email'] && ($insert_id = $USER->insert_identity($save_data)))
+  $plugin = $RCMAIL->plugins->exec_hook('create_identity', array('id' => $iid, 'record' => $save_data));
+  $save_data = $plugin['record'];
+
+  if (!$plugin['abort'] && $save_data['email'] && ($insert_id = $USER->insert_identity($save_data)))
   {
-    $OUTPUT->show_message('successfullysaved', 'confirmation');
+    $OUTPUT->show_message('successfullysaved', 'confirmation', null, false);
     
     $_GET['_iid'] = $insert_id;
 
@@ -100,7 +107,7 @@ else if (IDENTITIES_LEVEL < 2)
   else
   {
     // show error message
-    $OUTPUT->show_message('errorsaving', 'error');
+    $OUTPUT->show_message('errorsaving', 'error', null, false);
     rcmail_overwrite_action('edit-identity');
     return;
   }