diff --git a/UI/Templates/MailerUI/UIxMailEditor.wox b/UI/Templates/MailerUI/UIxMailEditor.wox
index 7a93d00ec9..e1aa96f371 100644
--- a/UI/Templates/MailerUI/UIxMailEditor.wox
+++ b/UI/Templates/MailerUI/UIxMailEditor.wox
@@ -69,7 +69,7 @@
               <md-chips ng-model="editor.message.editable.to"
                         md-separator-keys="editor.recipientSeparatorKeys"
                         md-transform-chip="editor.addRecipient($chip, 'to')"
-                        sg-transform-on-blur="sg-transform-on-blur">
+                        md-add-on-blur="true">
                 <md-autocomplete
                     class="sg-chips-autocomplete"
                     md-autofocus="true"
@@ -103,7 +103,7 @@
               <md-chips ng-model="editor.message.editable.cc"
                         md-separator-keys="editor.recipientSeparatorKeys"
                         md-transform-chip="editor.addRecipient($chip, 'cc')"
-                        sg-transform-on-blur="sg-transform-on-blur">
+                        md-add-on-blur="true">
                 <md-autocomplete
                     class="sg-chips-autocomplete"
                     md-search-text="editor.autocomplete.cc.searchText"
@@ -136,7 +136,7 @@
               <md-chips ng-model="editor.message.editable.bcc"
                         md-separator-keys="editor.recipientSeparatorKeys"
                         md-transform-chip="editor.addRecipient($chip, 'bcc')"
-                        sg-transform-on-blur="sg-transform-on-blur">
+                        md-add-on-blur="true">
                 <md-autocomplete
                     class="sg-chips-autocomplete"
                     md-selected-item="editor.autocomplete.bcc.selected"
diff --git a/UI/Templates/MailerUI/UIxMailMainFrame.wox b/UI/Templates/MailerUI/UIxMailMainFrame.wox
index 743b27b648..6fae8c54fd 100644
--- a/UI/Templates/MailerUI/UIxMailMainFrame.wox
+++ b/UI/Templates/MailerUI/UIxMailMainFrame.wox
@@ -254,7 +254,7 @@
                   ng-show="app.search.params.length != 0 || app.currentSearchParam"
                   ng-model="app.search.params"
                   md-transform-chip="app.newSearchParam($chip)"
-                  sg-transform-on-blur="sg-transform-on-blur">
+                  md-add-on-blur="true">
           <input sg-focus-on="advancedSearch" type="text"
                  ng-disabled="app.currentSearchParam.length == 0"
                  sg-placeholder="app.search.options[app.currentSearchParam]"/>
diff --git a/UI/WebServerResources/js/Common/sgTransformOnBlur.directive.js b/UI/WebServerResources/js/Common/sgTransformOnBlur.directive.js
deleted file mode 100644
index 9d8c582353..0000000000
--- a/UI/WebServerResources/js/Common/sgTransformOnBlur.directive.js
+++ /dev/null
@@ -1,84 +0,0 @@
-/* -*- Mode: javascript; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-
-(function() {
-  /* jshint loopfunc: true */
-  'use strict';
-
-  /**
-   * sgTransformOnBlur - A directive to extend md-chips so the text of the input
-   * field is converted to a chip when the field is loosing focus.
-   *
-   * See issues on github:
-   *
-   *    https://github.com/angular/material/issues/3364 (md-add-on-blur)
-   *    https://github.com/angular/material/issues/9582
-   *
-   * Code is extracted from "MdChipsCtrl.prototype.onInputBlur" in controller:
-   *
-   *   angular-material/src/components/chips/js/chipsController.js
-   *
-   * @memberof SOGo.Common
-   * @ngInject
-   * @example:
-
-   <md-chips ng-model="editor.message.editable.to"
-             md-separator-keys="editor.recipientSeparatorKeys"
-             md-transform-chip="editor.addRecipient($chip, 'to')"
-             sg-transform-on-blur>
-   */
-  sgTransformOnBlur.$inject = ['$window', '$timeout'];
-  function sgTransformOnBlur($window, $timeout) {
-    return {
-      link: link,
-      require: 'mdChips', // Extends the original mdChips directive
-      restrict: 'A'
-    };
-
-    function link(scope, element, attributes, mdChipsCtrl) {
-      var mouseUpActions = [];
-
-      mdChipsCtrl.onInputBlur = function() {
-        var appendFcn;
-
-        this.inputHasFocus = false;
-        appendFcn = (function() {
-          var chipBuffer = this.getChipBuffer().trim();
-
-          // Update the custom chip validators.
-          this.validateModel();
-
-          var isModelValid = this.ngModelCtrl.$valid;
-
-          if (this.userInputNgModelCtrl) {
-            isModelValid &= this.userInputNgModelCtrl.$valid;
-          }
-
-          // Only append the chip and reset the chip buffer if the chips and input ngModel is valid.
-          if (chipBuffer && isModelValid) {
-            this.appendChip(chipBuffer);
-            this.resetChipBuffer();
-          }
-        }).bind(this);
-
-        if (this.autocompleteCtrl) {
-          mouseUpActions.push(appendFcn);
-          $window.addEventListener('click', function(event){
-            while (mouseUpActions.length > 0) {
-              // Trigger actions after some delay to give time to md-autocomple to clear the input field
-              var action = mouseUpActions.splice(0,1)[0];
-              $timeout(function(){
-                $timeout(action);
-              });
-            }
-          }, false);
-        }
-        else
-          appendFcn();
-      };
-    }
-  }
-
-  angular
-    .module('SOGo.Common')
-    .directive('sgTransformOnBlur', sgTransformOnBlur);
-})();