diff --git a/roles/tools/tasks/main.yml b/roles/tools/tasks/main.yml
index ec3c4a1..cf3f24d 100644
--- a/roles/tools/tasks/main.yml
+++ b/roles/tools/tasks/main.yml
@@ -145,7 +145,7 @@
     - { address: "jack@{{ domain_base }}",    password: "{{ mailserver_jack_password }}" }
   when: >
     not postfix_accounts_file.stat.exists or
-    item.address not in (lookup('file', tools_root + '/mailserver/config/postfix-accounts.cf', errors='ignore') | default(''))
+    item.address not in (lookup('file', tools_root + '/mailserver/config/postfix-accounts.cf', errors='ignore') | default('', true))
 
 # ── DKIM ─────────────────────────────────────────────────────────────────────
 - name: Check if DKIM key exists