2009-04-08 通常使用するMTAを選択する centos5 # ./usr/sbin/alternatives --config mta There are 2 programs which provide 'mta'. Selection Command ----------------------------------------------- * 1 /usr/sbin/sendmail.sendmail + 2 /usr/sbin/sendmail.postfix Enter to keep the current selection[+], or type selection number: 2