i18N

resource/locales/en_US/admin/admin.json

@@ -28,6 +28,7 @@
     "update": "Update",
     "mail_settings": "E-mail Settings",
     "from_e-mail_address": "From e-mail address",
+    "send_test_mail": "send a test e-mail",
     "smtp_settings": "SMTP settings",
     "host": "Host",
     "port": "Port",

resource/locales/ja_JP/admin/admin.json

@@ -28,6 +28,7 @@
     "update": "更新",
     "mail_settings": "メールの設定",
     "from_e-mail_address": "Fromアドレス",
+    "send_test_mail": "テストメールを送信",
     "smtp_settings": "SMTP設定",
     "host": "ホスト",
     "port": "ポート",

resource/locales/zh_CN/admin/admin.json

@@ -28,7 +28,8 @@
 		"update": "更新",
 		"mail_settings": "邮件设置",
 		"from_e-mail_address": "From e-mail address",
-		"smtp_settings": "SMTP 设置",
+    "send_test_mail": "send a test e-mail",
+    "smtp_settings": "SMTP 设置",
 		"host": "服务器",
 		"port": "端口号",
 		"user": "用户名",

src/client/js/components/Admin/App/SmtpSetting.jsx

@@ -93,8 +93,8 @@ function SmtpSetting(props) {
             <button type="button" className="btn btn-primary" onClick={submitHandler} disabled={adminAppContainer.state.retrieveError != null}>
               { t('Update') }
             </button>
-            <button type="button" className="btn btn-primary" onClick={sendTestEmailHandler} disabled={adminAppContainer.state.retrieveError != null}>
-              send test
+            <button type="button" className="btn btn-secondary" onClick={sendTestEmailHandler}>
+              {t('admin:app_setting.send_test_mail')}
             </button>
           </div>
         </div>