diff --git a/config/application.yml.example b/config/application.yml.example
index aff6d5131..54abba54c 100644
--- a/config/application.yml.example
+++ b/config/application.yml.example
@@ -264,6 +264,7 @@ test:
   open_invitations: true
   no_follow_diasporahq: true
   serve_static_assets: true
+  mailer_on: true
 
 integration1:
   <<: *defaults
@@ -273,4 +274,4 @@ integration1:
 integration2:
   <<: *defaults
   pod_url: "http://localhost:3002/"
-  serve_static_assets: true
\ No newline at end of file
+  serve_static_assets: true