diff --git a/support/docker/production/.env b/support/docker/production/.env
index 802d6b2ca..7b9092642 100644
--- a/support/docker/production/.env
+++ b/support/docker/production/.env
@@ -7,12 +7,12 @@ PEERTUBE_WEBSERVER_HTTPS=true
 # pass them as a comma separated array:
 PEERTUBE_TRUST_PROXY=["127.0.0.1"]
 #PEERTUBE_TRUST_PROXY=["127.0.0.1", "loopback", "192.168.1.0/24"]
-PEERTUBE_SMTP_USERNAME=
-PEERTUBE_SMTP_PASSWORD=
+#PEERTUBE_SMTP_USERNAME=
+#PEERTUBE_SMTP_PASSWORD=
 PEERTUBE_SMTP_HOSTNAME=postfix
 PEERTUBE_SMTP_PORT=25
 PEERTUBE_SMTP_FROM=noreply@domain.tld
-PEERTUBE_SMTP_TLS=true
+PEERTUBE_SMTP_TLS=false
 PEERTUBE_SMTP_DISABLE_STARTTLS=false
 PEERTUBE_ADMIN_EMAIL=admin@domain.tld
 # /!\ Prefer to use the PeerTube admin interface to set the following configurations /!\