diff --git a/CloudronManifest.json b/CloudronManifest.json
index 031a534..94f5bff 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -7,7 +7,7 @@
   "contactEmail": "contact@ente.io",
   "website": "https://ente.io",
   "tagline": "Open source, end-to-end encrypted photo backup",
-  "version": "0.3.9",
+  "version": "0.4.0",
   "upstreamVersion": "git-main",
   "healthCheckPath": "/health",
   "httpPort": 3080,
diff --git a/start.sh b/start.sh
index bb21c17..f6926c7 100755
--- a/start.sh
+++ b/start.sh
@@ -125,8 +125,8 @@ SESSION_SECRET_FILE="$SECRETS_DIR/session_secret"
 SMTP_HOST="${CLOUDRON_MAIL_SMTP_SERVER:-mail}"
 SMTP_PORT="${CLOUDRON_MAIL_SMTP_PORT:-2525}"
 SMTP_ENCRYPTION=""
-SMTP_USERNAME=""
-SMTP_PASSWORD=""
+SMTP_USERNAME="${CLOUDRON_MAIL_SMTP_USERNAME:-}"
+SMTP_PASSWORD="${CLOUDRON_MAIL_SMTP_PASSWORD:-}"
 SMTP_EMAIL="${CLOUDRON_MAIL_FROM:-no-reply@$RP_ID}"
 SMTP_SENDER_NAME="${CLOUDRON_MAIL_FROM_DISPLAY_NAME:-Ente}"