diff --git a/monica/config.yaml b/monica/config.yaml
index c5437d173..d1983f567 100644
--- a/monica/config.yaml
+++ b/monica/config.yaml
@@ -64,7 +64,8 @@ devices:
 environment: {
   "APP_TRUSTED_PROXIES": "*",
   "APP_ENV": "production",
-  "APP_DEBUG": "false"
+  "APP_DEBUG": "false",
+  "MAIL_MAILER": "log"
 }
 image: ghcr.io/alexbelgium/monica-{arch}
 init: false