diff --git a/conf/config.yml b/conf/config.yml
index 907adf5..a77fc4e 100644
--- a/conf/config.yml
+++ b/conf/config.yml
@@ -138,9 +138,9 @@ mailer:
   # SMTP Auth Type. Can be either `plain`, `login` or `cram-md5`.
   authtype: "plain"
   # SMTP username
-  username: ""
+  username: "__APP__"
   # SMTP password
-  password: ""
+  password: "__MAIL_PWD__"
   # Wether to skip verification of the tls certificate on the server
   skiptlsverify: true
   # The default from address when sending emails
diff --git a/manifest.toml b/manifest.toml
index def0311..464c2d7 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -65,6 +65,7 @@ ram.runtime = "50M"
     [resources.ports]
 
     [resources.system_user]
+    allow_email = true
 
     [resources.install_dir]