local mode = module:get_option_string("log_auth_ips", "failure"); assert(({ all = true, failure = true, success = true })[mode], "Unknown log mode: "..tostring(mode).." - valid modes are 'all', 'failure', 'success'"); if mode == "failure" or mode == "all" then module:hook("authentication-failure", function (event) local session = event.session; local username = session.username or session.sasl_handler and session.sasl_handler.username or "?"; session.log("info", "Failed authentication attempt (%s) for user %s@%s from IP: %s", event.condition or "unknown-condition", username, module.host, session.ip or "?"); end); end if mode == "success" or mode == "all" then module:hook("authentication-success", function (event) local session = event.session; session.log("info", "Successful authentication as %s@%s from IP: %s", session.username, module.host, session.ip or "?"); end); end