diff --git a/UI/MailerUI/UIxMailUserRightsEditor.m b/UI/MailerUI/UIxMailUserRightsEditor.m
index 1fc272897..e1ed33c38 100644
--- a/UI/MailerUI/UIxMailUserRightsEditor.m
+++ b/UI/MailerUI/UIxMailUserRightsEditor.m
@@ -33,11 +33,10 @@
 
 - (BOOL) conformsToRFC4314
 {
-  SOGoMailAccount *mailAccount;
+  if ([[self clientObject] respondsToSelector: @selector(mailAccountFolder)])
+    return ([[[self clientObject] mailAccountFolder] imapAclStyle] == rfc4314);
 
-  mailAccount = [[self clientObject] mailAccountFolder];
-
-  return ([mailAccount imapAclStyle] == rfc4314);
+  return NO;
 }
 
 - (void) setUserCanReadMails: (BOOL) userCanReadMails
@@ -186,58 +185,54 @@
                        nil];
 }
 
-- (void) updateRights
+- (void) updateRights: (NSDictionary *) newRights
 {
-  WORequest *request;
-
-  request = [context request];
-
-  if ([[request formValueForKey: SOGoRole_ObjectViewer] length] > 0)
+  if ([[newRights objectForKey: @"userCanReadMails"] boolValue])
     [self appendRight: SOGoRole_ObjectViewer];
   else
     [self removeRight: SOGoRole_ObjectViewer];
 
-  if ([[request formValueForKey: SOGoMailRole_SeenKeeper] length] > 0)
+  if ([[newRights objectForKey: @"userCanMarkMailsRead"] boolValue])
     [self appendRight: SOGoMailRole_SeenKeeper];
   else
     [self removeRight: SOGoMailRole_SeenKeeper];
 
-  if ([[request formValueForKey: SOGoMailRole_Writer] length] > 0)
+  if ([[newRights objectForKey: @"userCanWriteMails"] boolValue])
     [self appendRight: SOGoMailRole_Writer];
   else
     [self removeRight: SOGoMailRole_Writer];
 
-  if ([[request formValueForKey: SOGoRole_ObjectCreator] length] > 0)
+  if ([[newRights objectForKey: @"userCanInsertMails"] boolValue])
     [self appendRight: SOGoRole_ObjectCreator];
   else
     [self removeRight: SOGoRole_ObjectCreator];
 
-  if ([[request formValueForKey: SOGoMailRole_Poster] length] > 0)
+  if ([[newRights objectForKey: @"userCanPostMails"] boolValue])
     [self appendRight: SOGoMailRole_Poster];
   else
     [self removeRight: SOGoMailRole_Poster];
 
-  if ([[request formValueForKey: SOGoRole_FolderCreator] length] > 0)
+  if ([[newRights objectForKey: @"userCanCreateSubfolders"] boolValue])
     [self appendRight: SOGoRole_FolderCreator];
   else
     [self removeRight: SOGoRole_FolderCreator];
 
-  if ([[request formValueForKey: SOGoRole_FolderEraser] length] > 0)
+  if ([[newRights objectForKey: @"userCanRemoveFolder"] boolValue])
     [self appendRight: SOGoRole_FolderEraser];
   else
     [self removeRight: SOGoRole_FolderEraser];
 
-  if ([[request formValueForKey: SOGoRole_ObjectEraser] length] > 0)
+  if ([[newRights objectForKey: @"userCanEraseMails"] boolValue])
     [self appendRight: SOGoRole_ObjectEraser];
   else
     [self removeRight: SOGoRole_ObjectEraser];
 
-  if ([[request formValueForKey: SOGoMailRole_Expunger] length] > 0)
+  if ([[newRights objectForKey: @"userCanExpungeFolder"] boolValue])
     [self appendRight: SOGoMailRole_Expunger];
   else
     [self removeRight: SOGoMailRole_Expunger];
 
-  if ([[request formValueForKey: SOGoMailRole_Administrator] length] > 0)
+  if ([[newRights objectForKey: @"userIsAdministrator"] boolValue])
     [self appendRight: SOGoMailRole_Administrator];
   else
     [self removeRight: SOGoMailRole_Administrator];
diff --git a/UI/MailerUI/product.plist b/UI/MailerUI/product.plist
index 6bbbe5ef4..8cfe30d7d 100644
--- a/UI/MailerUI/product.plist
+++ b/UI/MailerUI/product.plist
@@ -167,15 +167,20 @@
           actionClass = "UIxMailFolderActions";
           actionName = "setAsTrashFolder";
         };
-        userRights = {
-          protectedBy = "ReadAcls";
-          pageName    = "UIxMailUserRightsEditor";
-        };
         unseenCount = {
           protectedBy = "View";
           actionClass = "UIxMailFolderActions";
           actionName = "unseenCount";
         };
+        UIxMailUserRightsEditor = {
+          protectedBy = "ReadAcls";
+          pageName    = "UIxMailUserRightsEditor";
+        };
+        userRights = {
+          protectedBy = "ReadAcls";
+          pageName    = "UIxMailUserRightsEditor";
+          actionName  = "userRights";
+        };
         saveUserRights = {
           protectedBy = "Change Permissions";
           pageName    = "UIxMailUserRightsEditor";
diff --git a/UI/Templates/MailerUI/UIxMailMainFrame.wox b/UI/Templates/MailerUI/UIxMailMainFrame.wox
index 8f9cc0472..bd0fc9228 100644
--- a/UI/Templates/MailerUI/UIxMailMainFrame.wox
+++ b/UI/Templates/MailerUI/UIxMailMainFrame.wox
@@ -231,38 +231,8 @@
 
 <!-- TEMPLATE SCRIPT WRAPPER -->
   <script type="text/ng-template" id="UIxMailMainFrame">
-    <!-- dropdown menu for mailbox options button -->
-    <div id="folderProperties" class ="f-dropdown icons-dropdown" dropdown-content="dropdown-content" ng-hide="true">
-      <ul class="button-group">
-        <li ng-show="currentFolder.isEditable">
-          <span class="button" ng-click="editFolder(currentFolder)">
-            <i class="icon-pencil"><!-- rename --></i>
-          </span>
-        </li>
-        <li ng-show="currentFolder.isEditable">
-          <span class="button" ng-click="newFolder(currentFolder)">
-            <i class="icon-plus"><!-- new mailbox --></i>
-          </span>
-        </li>
-        <li ng-show="currentFolder.isEditable">
-          <span class="button" ng-click="share()">
-            <i class="icon-earth"><!-- share --></i>
-          </span>
-        </li>
-        <li>
-          <span class="button" ng-click="exportMails()">
-            <i class="icon-ion-ios7-upload-outline"><!-- export --></i>
-          </span>
-        </li>
-        <li ng-show="currentFolder.isEditable">
-          <span class="button" ng-click="confirmDelete()">
-            <i class="icon-trash"><!-- delete --></i>
-          </span>
-        </li>
-      </ul>
-    </div>
 
-<!-- Sidenav -->
+    <!-- Sidenav -->
     <md-sidenav id="left-sidenav" class="md-sidenav-left md-whiteframe-z1 md-layout-fill" md-component-id="left" md-is-locked-open="isGtMedium" layout="column">
       <var:component className="UIxSidenavToolbarTemplate" />
       <md-content md-scroll-y="md-scroll-y" class="md-flex">
@@ -296,11 +266,52 @@
                        sg-enter="saveFolder(folder)"
                        sg-escape="revertEditing(folder)"/>
               </md-input-container>
-              <md-button class="iconButton md-secondary" label:aria-label="Options"
-                         ng-show="currentFolder.path == folder.path"
-                         ng-click="confirmDelete(folder)">
-                <i class="md-icon-more-vert"><!-- options --></i>
-              </md-button>
+              <md-menu class="md-secondary" ng-show="currentFolder.path == folder.path">
+                <md-button class="iconButton"
+                           label:aria-label="Options"
+                           ng-click="$mdOpenMenu()">
+                  <i class="md-icon-more-vert" md-menu-origin="md-menu-origin"><!-- options --></i>
+                </md-button>
+
+                <md-menu-content width="2">
+                  <!-- <md-menu-item>
+                    <md-button type="button" ng-click="TODO">
+                      <var:string label:value="Mark Folder Read"/>
+                    </md-button>
+                  </md-menu-item> -->
+                  <md-menu-item>
+                    <md-button type="button" ng-click="newFolder(folder)">
+                      <var:string label:value="New Subfolder..."/>
+                    </md-button>
+                  </md-menu-item>
+                  <!-- <md-menu-item>
+                    <md-button type="button" ng-click="TODO">
+                      <var:string label:value="Compact"/>
+                    </md-button>
+                  </md-menu-item> -->
+                  <md-menu-item>
+                    <md-button type="button" ng-click="confirmDelete(folder)">
+                      <var:string label:value="Delete"/>
+                    </md-button>
+                  </md-menu-item>
+                  <md-menu-item>
+                    <md-button type="button" ng-click="exportMails()">
+                      <var:string label:value="Export"/>
+                    </md-button>
+                  </md-menu-item>
+                  <md-menu-divider><!-- divider --></md-menu-divider>
+                  <!-- <md-menu-item>
+                    <md-button type="button" ng-click="TODO">
+                      <var:string label:value="Use This Folder For"/>
+                    </md-button>
+                  </md-menu-item> -->
+                  <md-menu-item>
+                    <md-button type="button" ng-click="share(folder)">
+                      <var:string label:value="Sharing..."/>
+                    </md-button>
+                  </md-menu-item>
+                </md-menu-content>
+              </md-menu>
             </md-list-item>
           </md-list>
         </section>
@@ -357,6 +368,11 @@
     </section>
   </script>
 
+  <!-- modal for mailbox sharing options -->
+  <script type="text/ng-template" id="UIxUserRightsEditor">
+    <var:component className="UIxMailUserRightsEditor" />
+  </script>
+
   <script type="text/ng-template" id="UIxMailFolderTemplate">
     <var:component className="UIxMailFolderTemplate" />
   </script>
diff --git a/UI/Templates/MailerUI/UIxMailUserRightsEditor.wox b/UI/Templates/MailerUI/UIxMailUserRightsEditor.wox
index 4fc68945b..85fac28c8 100644
--- a/UI/Templates/MailerUI/UIxMailUserRightsEditor.wox
+++ b/UI/Templates/MailerUI/UIxMailUserRightsEditor.wox
@@ -6,100 +6,91 @@
    xmlns:rsrc="OGo:url"
    xmlns:label="OGo:label"
    xmlns:uix="OGo:uix">
-      <div>
-        <ul>
-          <li>
-            <label>
-              <input type="checkbox"
-                     ng-checked="selectedUser.rights.userCanReadMails"
-                     ng-model="selectedUser.rights.userCanReadMails"
-                     ng-change="confirmChange(selectedUser)" />
-              <var:string label:value="Read mails from this folder" />
-            </label>
-          </li>
-          <li>
-            <label>
-              <input type="checkbox" name="userCanMarkMailsRead"
-                     ng-checked="selectedUser.rights.userCanMarkMailsRead"
-                     ng-model="selectedUser.rights.userCanMarkMailsRead"
-                     ng-change="confirmChange(selectedUser)" />
-              <var:string label:value="Mark mails read and unread" />
-            </label>
-          </li>
-          <li>
-            <label>
-              <input type="checkbox" name="userCanWriteMails"
-                     ng-checked="selectedUser.rights.userCanWriteMails"
-                     ng-model="selectedUser.rights.userCanWriteMails"
-                     ng-change="confirmChange(selectedUser)" />
-              <var:string label:value="Modify the flags of the mails in this folder" />
-            </label>
-          </li>
-          <li>
-            <label>
-              <input type="checkbox" name="userCanInsertMails"
-                     ng-checked="selectedUser.rights.userCanInsertMails"
-                     ng-model="selectedUser.rights.userCanInsertMails"
-                     ng-change="confirmChange(selectedUser)" />
+
+    <div class="mailUserRights" layout="column">
+    
+    <md-checkbox name="userCanReadMails"
+                 ng-model="acl.selectedUser.rights.userCanReadMails"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
+      <var:string label:value="Read mails from this folder" />
+    </md-checkbox>
+    
+    <md-checkbox name="userCanMarkMailsRead"
+                 ng-model="acl.selectedUser.rights.userCanMarkMailsRead"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
+      <var:string label:value="Mark mails read and unread" />
+    </md-checkbox>
+    
+    <md-checkbox name="userCanWriteMails"
+                 ng-model="acl.selectedUser.rights.userCanWriteMails"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
+      <var:string label:value="Modify the flags of the mails in this folder" />
+    </md-checkbox>
+    
+    <md-checkbox name="userCanInsertMails"
+                 ng-model="acl.selectedUser.rights.userCanInsertMails"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
               <var:string label:value="Insert, copy and move mails into this folder" />
-            </label>
-          </li>
-          <li>
-            <label>
-              <input type="checkbox" name="userCanPostMails"
-                     ng-checked="selectedUser.rights.userCanPostMails"
-                     ng-model="selectedUser.rights.userCanPostMails"
-                     ng-change="confirmChange(selectedUser)" />
+    </md-checkbox>
+
+    <md-checkbox name="userCanPostMails"
+                 ng-model="acl.selectedUser.rights.userCanPostMails"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
               <var:string label:value="Post mails" />
-            </label>
-          </li>
-          <li>
-            <label>
-              <input type="checkbox" name="userCanCreateSubfolders"
-                     ng-checked="selectedUser.rights.userCanCreateSubfolders"
-                     ng-model="selectedUser.rights.userCanCreateSubfolders"
-                     ng-change="confirmChange(selectedUser)" />
+    </md-checkbox>
+
+    <md-checkbox name="userCanCreateSubfolders"
+                 ng-model="acl.selectedUser.rights.userCanCreateSubfolders"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
               <var:string label:value="Add subfolders to this folder" />
-            </label>
-          </li>
-          <li>
-            <label>
-              <input type="checkbox" name="userCanEraseMails"
-                     ng-checked="selectedUser.rights.userCanEraseMails"
-                     ng-model="selectedUser.rights.userCanEraseMails"
-                     ng-change="confirmChange(selectedUser)" />
+    </md-checkbox>
+
+    <md-checkbox name="userCanEraseMails"
+                 ng-model="acl.selectedUser.rights.userCanEraseMails"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
               <var:string label:value="Erase mails from this folder" />
-            </label>
-          </li>
-          <var:if condition="conformsToRFC4314">
-          <li>
-            <label>
-              <input type="checkbox" name="userCanRemoveFolder"
-                     ng-checked="selectedUser.rights.userCanRemoveFolder"
-                     ng-model="selectedUser.rights.userCanRemoveFolder"
-                     ng-change="confirmChange(selectedUser)" />
+    </md-checkbox>
+
+    <var:if condition="conformsToRFC4314">
+    <md-checkbox name="userCanRemoveFolder"
+                 ng-model="acl.selectedUser.rights.userCanRemoveFolder"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
               <var:string label:value="Remove this folder" />
-            </label>
-          </li>
-          <li>
-            <label>
-              <input type="checkbox" name="userCanExpungeFolder"
-                     ng-checked="selectedUser.rights.userCanExpungeFolder"
-                     ng-model="selectedUser.rights.userCanExpungeFolder"
-                     ng-change="confirmChange(selectedUser)" />
+    </md-checkbox>
+    
+    <md-checkbox name="userCanExpungeFolder"
+                 ng-model="acl.selectedUser.rights.userCanExpungeFolder"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
               <var:string label:value="Expunge this folder" />
-            </label>
-          </li>
-          </var:if>
-          <li>
-            <label>
-              <input type="checkbox" name="userIsAdministrator"
-                     ng-checked="selectedUser.rights.userIsAdministrator"
-                     ng-model="selectedUser.rights.userIsAdministrator"
-                     ng-change="confirmChange(selectedUser)" />
-              <var:string label:value="Modify the acl of this folder" />
-            </label>
-          </li>
-        </ul>
-      </div>
+    </md-checkbox>
+    </var:if>
+
+    <md-checkbox name="userIsAdministrator"
+                 ng-model="acl.selectedUser.rights.userIsAdministrator"
+                 ng-change="acl.confirmChange(acl.selectedUser)"
+                 ng-true-value="1"
+                 ng-false-value="0">
+      <var:string label:value="Modify the acl of this folder" />
+    </md-checkbox>
+ 
+  </div>
+
 </container>
diff --git a/UI/WebServerResources/js/Mailer/Mailbox.service.js b/UI/WebServerResources/js/Mailer/Mailbox.service.js
index 922691048..a51b3f681 100644
--- a/UI/WebServerResources/js/Mailer/Mailbox.service.js
+++ b/UI/WebServerResources/js/Mailer/Mailbox.service.js
@@ -24,6 +24,7 @@
         this.isEditable = this.$isEditable();
         // Make a copy of the data for an eventual reset
         this.$shadowData = this.$omit();
+        this.$acl = new Mailbox.$$Acl('Mail/' + this.id);
       }
     }
     else {
@@ -38,13 +39,14 @@
    * @desc The factory we'll use to register with Angular
    * @returns the Mailbox constructor
    */
-  Mailbox.$factory = ['$q', '$timeout', '$log', 'sgSettings', 'Resource', 'Message', 'sgMailbox_PRELOAD', function($q, $timeout, $log, Settings, Resource, Message, PRELOAD) {
+  Mailbox.$factory = ['$q', '$timeout', '$log', 'sgSettings', 'Resource', 'Message', 'Acl', 'sgMailbox_PRELOAD', function($q, $timeout, $log, Settings, Resource, Message, Acl, PRELOAD) {
     angular.extend(Mailbox, {
       $q: $q,
       $timeout: $timeout,
       $log: $log,
       $$resource: new Resource(Settings.activeUser.folderURL + 'Mail', Settings.activeUser),
       $Message: Message,
+      $$Acl: Acl,
       PRELOAD: PRELOAD
     });
 
@@ -489,6 +491,9 @@
             _.extend(_this.$messages[i], msg);
           });
         }
+        // Instanciate Acl object
+        _this.$acl = new Mailbox.$$Acl('Mail/' + _this.id);
+
         Mailbox.$log.debug('mailbox ' + _this.id + ' ready');
         _this.$isLoading = false;
         deferred.resolve(_this.$messages);
diff --git a/UI/WebServerResources/js/Mailer/MailboxesController.js b/UI/WebServerResources/js/Mailer/MailboxesController.js
index bba748dfd..897e15c01 100644
--- a/UI/WebServerResources/js/Mailer/MailboxesController.js
+++ b/UI/WebServerResources/js/Mailer/MailboxesController.js
@@ -6,8 +6,8 @@
   /**
    * @ngInject
    */
-  MailboxesController.$inject = ['$scope', '$rootScope', '$stateParams', '$state', '$timeout', 'sgFocus', 'encodeUriFilter', 'Dialog', 'sgSettings', 'Account', 'Mailbox', 'stateAccounts'];
-  function MailboxesController($scope, $rootScope, $stateParams, $state, $timeout, focus, encodeUriFilter, Dialog, Settings, Account, Mailbox, stateAccounts) {
+  MailboxesController.$inject = ['$scope', '$rootScope', '$stateParams', '$state', '$timeout', '$q', '$mdDialog', 'sgFocus', 'encodeUriFilter', 'Dialog', 'sgSettings', 'Account', 'Mailbox', 'User', 'stateAccounts'];
+  function MailboxesController($scope, $rootScope, $stateParams, $state, $timeout, $q, $mdDialog, focus, encodeUriFilter, Dialog, Settings, Account, Mailbox, User, stateAccounts) {
     $scope.activeUser = Settings.activeUser;
     $scope.accounts = stateAccounts;
 
@@ -58,7 +58,106 @@
             });
         });
     };
+    $scope.share = function(folder) {
+      //if (addressbook.id != vm.service.selectedFolder.id) {
+      // Counter the possibility to click on the "hidden" secondary button
+      //select(addressbook);
+      //  return;
+      //}
+      // Fetch list of ACL users
+      folder.$acl.$users().then(function() {
+        // Show ACL editor
+        $mdDialog.show({
+          templateUrl: folder.id + '/UIxAclEditor', // UI/Templates/UIxAclEditor.wox
+          controller: MailboxACLController,
+          controllerAs: 'acl',
+          clickOutsideToClose: true,
+          escapeToClose: true,
+          locals: {
+            usersWithACL: folder.$acl.users,
+            User: User,
+            folder: folder,
+            $q: $q
+          }
+        });
+      });
 
+      /**
+       * @ngInject
+       */
+      MailboxACLController.$inject = ['$scope', '$mdDialog', 'usersWithACL', 'User', 'folder', '$q'];
+      function MailboxACLController($scope, $mdDialog, usersWithACL, User, folder, $q) {
+        var vm = this;
+
+        vm.users = usersWithACL; // ACL users
+        vm.folder = folder;
+        vm.selectedUser = null;
+        vm.userToAdd = '';
+        vm.searchText = '';
+        vm.userFilter = userFilter;
+        vm.closeModal = closeModal;
+        vm.saveModal = saveModal;
+        vm.confirmChange = confirmChange;
+        vm.removeUser = removeUser;
+        vm.addUser = addUser;
+        vm.selectUser = selectUser;
+
+        function userFilter($query) {
+          return User.$filter($query, folder.$acl.users);
+        }
+
+        function closeModal() {
+          folder.$acl.$resetUsersRights(); // cancel changes
+          $mdDialog.hide();
+        }
+
+        function saveModal() {
+          folder.$acl.$saveUsersRights().then(function() {
+            $mdDialog.hide();
+          }, function(data, status) {
+            Dialog.alert(l('Warning'), l('An error occured please try again.'));
+          });
+        }
+
+        function confirmChange(user) {
+          var confirmation = user.$confirmRights();
+          if (confirmation) {
+            Dialog.confirm(l('Warning'), confirmation).catch(function() {
+              user.$resetRights(true);
+            });
+          }
+        }
+
+        function removeUser(user) {
+          folder.$acl.$removeUser(user.uid).then(function() {
+            if (user.uid == vm.selectedUser.uid) {
+              vm.selectedUser = null;
+            }
+          }, function(data, status) {
+            Dialog.alert(l('Warning'), l('An error occured please try again.'))
+          });
+        }
+
+        function addUser(data) {
+          if (data) {
+            folder.$acl.$addUser(data).then(function() {
+              vm.userToAdd = '';
+              vm.searchText = '';
+            }, function(error) {
+              Dialog.alert(l('Warning'), error);
+            });
+          }
+        }
+
+        function selectUser(user) {
+          // Check if it is a different user
+          if (vm.selectedUser != user) {
+            vm.selectedUser = user;
+            vm.selectedUser.$rights();
+          }
+        }
+      }
+    };
     $scope.unselectMessages = function() {
       _.each($rootScope.mailbox.$messages, function(message) { message.selected = false; });
     };