diff --git a/dashboard/src/views/email.html b/dashboard/src/views/email.html
index bc971adf2..b09073913 100644
--- a/dashboard/src/views/email.html
+++ b/dashboard/src/views/email.html
@@ -33,8 +33,11 @@
       <div class="modal-body">
         <form name="mailboxadd_form" role="form" ng-submit="mailboxes.add.submit()" autocomplete="off">
           <input type="password" style="display: none;">
-          <div class="form-group">
+          <div class="form-group" ng-class="{ 'has-error': mailboxes.add.error.statusCode === 409 }">
               <label class="control-label">Name</label>
+              <div class="control-label" ng-show="mailboxes.add.error.statusCode === 409">
+                <small>A mailbox, alias or mailinglist with this name already exists</small>
+              </div>
               <div class="input-group form-inline" style="margin-top: 10px;">
                 <input type="text" class="form-control" ng-model="mailboxes.add.name" placeholder="Name" required autofocus autocomplete="off"/>
                 <div class="input-group-addon">@{{ selectedDomain.domain }}</div>
@@ -42,7 +45,7 @@
             </div>
           <div class="form-group">
             <label class="control-label">Owner</label>
-            <select class="form-control" ng-model="mailboxes.add.owner" ng-options="u.display for u in users track by u.id"></select>
+            <select class="form-control" ng-model="mailboxes.add.owner" ng-options="u.display for u in users track by u.id" required></select>
           </div>
           <input class="hide" type="submit" ng-disabled="mailboxadd_form.$invalid || mailboxes.add.busy"/>
         </form>
@@ -323,7 +326,7 @@
   <div class="card card-large" style="margin-bottom: 15px;" ng-show="selectedDomain.mailConfig.enabled">
     <div class="row">
       <div class="col-md-12">
-        Mailinglists will forward all emails to the assigned mailboxes.
+        Mailinglists will forward all emails to the associated mailboxes.
 
         <br/>
         <br/>
@@ -332,7 +335,7 @@
           <thead>
             <tr>
               <th>Name</th>
-              <th>Mailboxes</th>
+              <th>Associated Mailboxes</th>
               <th class="text-right">Action</th>
             </tr>
           </thead>
diff --git a/dashboard/src/views/email.js b/dashboard/src/views/email.js
index f1ace6814..5d01c4931 100644
--- a/dashboard/src/views/email.js
+++ b/dashboard/src/views/email.js
@@ -225,7 +225,7 @@ angular.module('Application').controller('EmailController', ['$scope', '$locatio
                 Client.addMailbox($scope.selectedDomain.domain, $scope.mailboxes.add.name, $scope.mailboxes.add.owner.id, function (error) {
                     if (error) {
                         $scope.mailboxes.add.busy = false;
-                        $scope.mailboxes.add.error = error.message;
+                        $scope.mailboxes.add.error = error;
                         return;
                     }