diff --git a/ghost/admin/app/components/gh-post-settings-menu/email.js b/ghost/admin/app/components/gh-post-settings-menu/email.js
index 6fc85dc0ef..23749e49d5 100644
--- a/ghost/admin/app/components/gh-post-settings-menu/email.js
+++ b/ghost/admin/app/components/gh-post-settings-menu/email.js
@@ -93,7 +93,8 @@ export default class Email extends Component {
                 data,
                 dataType: 'json'
             };
-            return yield this.ajax.post(url, options);
+            yield this.ajax.post(url, options);
+            return true;
         } catch (error) {
             if (error) {
                 let message = 'Email could not be sent, verify mail settings';
diff --git a/ghost/admin/app/components/modals/post-preview/email.js b/ghost/admin/app/components/modals/post-preview/email.js
index 0db5979ea8..ee54f5550e 100644
--- a/ghost/admin/app/components/modals/post-preview/email.js
+++ b/ghost/admin/app/components/modals/post-preview/email.js
@@ -86,7 +86,8 @@ export default class ModalPostPreviewEmailComponent extends Component {
                 dataType: 'json'
             };
 
-            return yield this.ajax.post(url, options);
+            yield this.ajax.post(url, options);
+            return true;
         } catch (error) {
             if (error) {
                 let message = 'Email could not be sent, verify mail settings';