POSTFIX+Extmail邮件系统搭建(完整版)系列之二

 第二部分：配置MTA-Postfix

 

1、安装postfix

# yum install postfix
# rpm -e sendmail

 

2、配置postfix

# 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

 

3、编辑main.cf：

# vi /etc/postfix/main.cf

 

增加如下内容：

# hostname

mynetworks = 127.0.0.1

myhostname = mail.extmail.org

mydestination = $mynetworks $myhostname

 

# banner

mail_name = Postfix - by extmail.org

smtpd_banner = $myhostname ESMTP $mail_name

 

# response immediately

smtpd_error_sleep_time = 0s

 

# Message and return code control

message_size_limit = 5242880

mailbox_size_limit = 5242880

show_user_unknown_table_name = no

 

# Queue lifetime control

bounce_queue_lifetime = 1d

maximal_queue_lifetime = 1d

 

4、设置postfix开机自启：

# netstat -n -a –tcp

# chkconfig postfix on