ngx_mail_smtp_invalid_pipelining   18 mail/ngx_mail_smtp_handler.c static void ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev);
ngx_mail_smtp_invalid_pipelining  259 mail/ngx_mail_smtp_handler.c          c->read->handler = ngx_mail_smtp_invalid_pipelining;