display usage info

src/views/email.js

@@ -391,7 +391,13 @@ angular.module('Application').controller('EmailController', ['$scope', '$locatio
                         return m;
                     });
 
-                    callback();
+                    Client.getMailUsage($scope.domain.domain, function (error, usage) {
+                        if (error) return callback(error);
+
+                        $scope.mailboxes.mailboxes.forEach(function (m) { m.usage = usage[m.name].size || 0; });
+
+                        callback();
+                    });
                 });
             });
         }