diff --git a/deploy/task_definition.jsonnet b/deploy/task_definition.jsonnet
index 23bd4ec98..edeadc52e 100644
--- a/deploy/task_definition.jsonnet
+++ b/deploy/task_definition.jsonnet
@@ -31,6 +31,14 @@
           name: 'LANG',
           value: 'en_US.UTF-8',
         },
+        {
+          name: 'MAIL_FROM',
+          value: 'noreply@kaigionrails.org',
+        },
+        {
+          name: 'MAIL_HOST',
+          value: 'cfp.kaigionrails.org',
+        },
         {
           name: 'RACK_ENV',
           value: 'production',