FILTER_HELO
case FILTER_HELO:
{ FILTER_HELO, "helo", filter_builtins_helo },
case FILTER_HELO:
filter_config->phase = FILTER_HELO;
smtp_filter_phase(FILTER_HELO, s, args);
{ CMD_HELO, FILTER_HELO, "HELO", smtp_check_helo, smtp_proceed_helo },