安装postfix
shell
# yum install postfix
# rpm -e sendmail
shell
# postconf -n > /etc/postfix/main2.cf
# mv /etc/postfix/main.cf /etc/postfix/main.cf.old
# mv /etc/postfix/main2.cf /etc/postfix/main.cf
编辑main.cf：
shell
# vi /etc/postfix/main.cf
增加如下内容：
# hostnamemynetworks = 127.0.0.1myhostname = mail.extmail.org mydestination = $mynetworks $myhostname# banner mail_name = Postfix - by extmail.orgsmtpd_banner = $myhostname ESMTP $mail_name # response immediatelysmtpd_error_sleep_time = 0s # Message and return code controlmessage_size_limit = 5242880 mailbox_size_limit = 5242880show_user_unknown_table_name = no # Queue lifetime controlbounce_queue_lifetime = 1dmaximal_queue_lifetime = 1d
设置postfix开机自启：
shell
# chkconfig postfix on
本文转自glying 51CTO博客，原文链接：http://blog.51cto.com/liying/968573，如需转载请自行联系原作者