fix mailer dsn

env/.env.prod

@@ -34,3 +34,7 @@ BIND_FILE_BUFFER_FILE=/env/subdomain.txt
 ###> filename log ###
 LOG_FILE_NAME=prod
 ###< filename log ###
+
+###> mailcatcher ###
+MAILER_DSN=smtp://localhost:25?verify_peer=false
+###< symfony/mercure-bundle ###