#执行下面的命令，各位大侠都对号入座吧
#sendmial
service sendmail stop
chkconfig sendmail off
#postfix
service postfix stop
chkconfig postfix off

#再狠一点就直接卸载吧..
yum remove sendmail
yum remove postfix

set from=123456@qq.com
set smtp=smtp.qq.com
set smtp-auth-user=123456
set smtp-auth-password=你的授权码
set smtp-auth=login

echo  hello word | mail -s " title" 123456@qq.com

echo "

" | mail -s "$(echo -e "This is the subject\nContent-Type: text/html")"  123456@qq.com