send_action       838 mail/ngx_mail_proxy_module.c     char                   *action, *recv_action, *send_action;
send_action       870 mail/ngx_mail_proxy_module.c             send_action = "proxying and sending to client";
send_action       877 mail/ngx_mail_proxy_module.c             send_action = "proxying and sending to upstream";
send_action       886 mail/ngx_mail_proxy_module.c             send_action = "proxying and sending to upstream";
send_action       893 mail/ngx_mail_proxy_module.c             send_action = "proxying and sending to client";
send_action       913 mail/ngx_mail_proxy_module.c                 c->log->action = send_action;