diff --git a/.env b/.env
index c352612..548d9ec 100644
--- a/.env
+++ b/.env
@@ -35,7 +35,7 @@ HOSTNAMES=pdocker5.serveur
 POSTMASTER=admin
 
 # Choose how secure connections will behave (value: letsencrypt, cert, notls, mail, mail-letsencrypt)
-TLS_FLAVOR=external
+TLS_FLAVOR=cert
 TLS_CERT_FILENAME=pdocker5.serveur.crt
 TLS_KEYPAIR_FILENAME=pdocker5.serveur.pem