diff --git a/conf/secrets.yml b/conf/secrets.yml
index ec44c77..bdc877a 100644
--- a/conf/secrets.yml
+++ b/conf/secrets.yml
@@ -5,15 +5,15 @@ production:
   delivery_method: 'smtp'
   smtp_address: 'localhost'
   smtp_port: 25
-  smtp_user_name: 
-  smtp_password: 
+  smtp_user_name: '__APP__'
+  smtp_password: '__MAIL_PWD__'
   time_zone: 'Paris'
   smtp_authentication: 'none'
   smtp_enable_starttls_auto: false
-  smtp_openssl_verify_mode: 
+  smtp_openssl_verify_mode:
   smtp_tls: false
-  smtp_ca_file: 
-  smtp_ca_path: 
+  smtp_ca_file:
+  smtp_ca_path:
   week_starting_day: 'monday'
   d3_date_format: '%y-%m-%d'
   uib_date_format: 'dd/MM/yyyy'
@@ -30,14 +30,14 @@ production:
   openlab_base_uri: 'https://openprojects.fab-manager.com'
   openlab_ssl_verify: true
   openlab_ssl_verify_peer: true
-  navinum_api_login: 
-  navinum_api_password: 
+  navinum_api_login:
+  navinum_api_password:
   elaticsearch_host: localhost
   max_image_size: 10485760
   max_cao_size: 20971520
   max_import_size: 5242880
-  max_proof_of_identity_file_size: 
+  max_proof_of_identity_file_size:
   disk_space_mb_alert: 1024
-  adminsys_email: 'root@__DOMAIN__'
+  adminsys_email: '__ADMIN_MAIL__'
   allow_insecure_http: false
   locked_settings: <%= ENV.fetch("LOCKED_SETTINGS", 'uuid,origin').split(/,/) %>
diff --git a/manifest.toml b/manifest.toml
index 391f1fd..2a8bdc8 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -51,6 +51,7 @@ ram.runtime = "50M" # FIXME: replace with an **estimate** minimum ram requiremen
     autoupdate.strategy = "latest_github_tag"
 
     [resources.system_user]
+    allow_email = true
 
     [resources.install_dir]