(1) 停掉sendmail
root@p550/>
stopsrc -s sendmail
0513-044 The sendmail Subsystem was requested to stop.
(2) 確認一下有沒有停掉（只有一行表示成功）
root@p550/>
ps -ef | grep sendmail
root 336058 393352 0 15:45:45 pts/7 0:00 grep sendmail
(3)開機不啟動sendmail
root@p550/>
chrctcp -d sendmail
root@p550/>
