Enabled email service for external people

cms/config/plugins.js

@@ -2,9 +2,12 @@ module.exports = ({ env }) => ({
       email: {
         config: {
           provider: 'sendmail',
+          providerOptions: {
+            smtpHost: 'localhost'
+          },
           settings: {
-            defaultFrom: 'No-Reply <no-reply@ddcode.org>',
-            defaultReplyTo: 'No-Reply <no-reply@ddcode.org>',
+            defaultFrom: 'DDCode <ddcode@mpi-cbg.de>',
+            defaultReplyTo: 'DDCode <ddcode@mpi-cbg.de>',
           },
         },
       },