-- This config acts as a sink that will discard all received mail local kumo = require 'kumo' kumo.on('init', function() kumo.configure_accounting_db_path(os.tmpname()) -- Define a listener. -- Can be used multiple times with different parameters to -- define multiple listeners! for _, port in ipairs { 2026 } do kumo.start_esmtp_listener { listen = '0:' .. tostring(port), relay_hosts = { '0.0.0.0/0' }, } end kumo.start_http_listener { listen = '0.0.0.0:8002', trusted_hosts = { '127.0.0.1', '::1', '192.168.1.0/24' }, } -- Define the default "data" spool location. -- This is unused by this config, but we are required to -- define a default spool location. kumo.define_spool { name = 'data', path = '/tmp/kumo-sink/data', } -- Define the default "meta" spool location. -- This is unused by this config, but we are required to -- define a default spool location. kumo.define_spool { name = 'meta', path = '/tmp/kumo-sink/meta', } end) kumo.on('smtp_server_message_received', function(msg) -- Accept and discard all messages msg:set_meta('queue', 'null') end) kumo.on('http_message_generated', function(msg) -- Accept and discard all messages msg:set_meta('queue', 'null') end)