/var/log/maillog
 Sep 27 00:49:43 rootguide sm-msp-queue[10054]: g8LGAKKl018300: to=dopesoul at rootguide.com, ctladdr=nobody (99/99), delay
=4+23:39:23, xdelay=00:00:00, mailer=relay, pri=21990220, relay=localhost.com., dsn=4.0.0, stat=Deferred: Connection tim
ed out with localhost.com.  도대체 localhost.com. 이 어디있을까요.. 미치겠네--규칙1. 눈에 보이는것
만 믿지 말라. 규칙2. 안되면 계속하라.