Use local MTA connects for mailman-web

compose.yml

@@ -45,7 +45,6 @@ services:
       - db_password
       - django_secret_key
       - hyperkitty_api_key
-      - smtp_host_password
     environment:
       - DATABASE_PASSWORD_FILE=/run/secrets/db_password
       - DATABASE_TYPE=postgres
@@ -55,10 +54,7 @@ services:
       - SECRET_KEY_FILE=/run/secrets/django_secret_key
       - SERVE_FROM_DOMAIN
       - SMTP_HOST
-      - SMTP_HOST_PASSWORD_FILE=/run/secrets/smtp_host_password
-      - SMTP_HOST_USER
       - SMTP_PORT
-      - SMTP_USE_TLS
     configs:
       - source: web_entrypoint_sh
         target: /usr/local/bin/docker-entrypoint-ustom.sh
@@ -123,9 +119,6 @@ secrets:
   mailman_rest_password:
     external: true
     name: ${STACK_NAME}_mailman_rest_password_${SECRET_MAILMAN_REST_PASSWORD_VERSION}
-  smtp_host_password:
-    external: true
-    name: ${STACK_NAME}_smtp_host_password_${SECRET_SMTP_HOST_PASSWORD_VERSION}
 
 configs:
   core_entrypoint_sh: