NGX_POP3_QUIT 58 mail/ngx_mail_parse.c s->command = NGX_POP3_QUIT; NGX_POP3_QUIT 176 mail/ngx_mail_pop3_handler.c case NGX_POP3_QUIT: NGX_POP3_QUIT 206 mail/ngx_mail_pop3_handler.c case NGX_POP3_QUIT: