diff --git a/app.yml b/app.yml
index 5747456..a70f817 100644
--- a/app.yml
+++ b/app.yml
@@ -36,15 +36,13 @@ env:
   ## Admin email for initial setup
   DISCOURSE_DEVELOPER_EMAILS: 'jeff@jeffemmett.com'
 
-  ## SMTP - configure when ready (forum works without it but can't send emails)
-  ## Uncomment and fill in when email provider is chosen:
-  # DISCOURSE_SMTP_ADDRESS: smtp.example.com
-  # DISCOURSE_SMTP_PORT: 587
-  # DISCOURSE_SMTP_USER_NAME: user@example.com
-  # DISCOURSE_SMTP_PASSWORD: "password"
-  # DISCOURSE_SMTP_ENABLE_START_TLS: true
-  # DISCOURSE_SMTP_DOMAIN: cadcad.org
-  # DISCOURSE_NOTIFICATION_EMAIL: noreply@cadcad.org
+  ## SMTP via local mailcow (internal relay, no auth needed)
+  DISCOURSE_SMTP_ADDRESS: 10.100.0.253
+  DISCOURSE_SMTP_PORT: 25
+  DISCOURSE_SMTP_ENABLE_START_TLS: false
+  DISCOURSE_SMTP_OPENSSL_VERIFY_MODE: none
+  DISCOURSE_SMTP_DOMAIN: jeffemmett.com
+  DISCOURSE_NOTIFICATION_EMAIL: noreply@jeffemmett.com
 
   ## Serve behind reverse proxy
   DISCOURSE_FORCE_HTTPS: true