How to install postfix and set up sasl on CentOS6
[root@mail ~]# yum -y install postfix
[root@mail ~]# vi /etc/postfix/main.cf # 第75行: 去掉注释，并设置主机名。 myhostname = mail.opsky.top # 第83行: 去掉注释，并设置域名。 mydomain = opsky.top # 第99行: 去掉注释。 myorigin = $mydomain # 第116行: inet_interfaces = all # 第119行: 如果只使用ipv4，那么设置如下。 inet_protocols = ipv4 # 第164行: 配置可接收邮件的域名。 mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain # 第264行: 去掉注释，并设置本地网络号段. mynetworks = 127.0.0.0/8, 10.0.0.0/24 # 第419行: 去掉注释，采用Maildir格式。 home_mailbox = Maildir/ # 第571行: smtpd_banner = $myhostname ESMTP # 添加如下配置到文件末尾 # 一封邮件大小限制为10M message_size_limit = 10485760 # 一个邮箱大小限制为1G mailbox_size_limit = 1073741824 # 配置SMTP-Auth采用dovecot的sasl功能 smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname smtpd_recipient_restrictions = permit_mynetworks,permit_auth_destination,permit_sasl_authenticated,reject main.cf配置完毕后，启动postfix，并设置自动启动。 [root@mail ~]# /etc/rc.d/init.d/postfix start Starting postfix: [ OK ] [root@mail ~]# chkconfig postfix on
[root@dlp ~]# iptables -I INPUT 5 -p tcp -m state --state NEW -m tcp --dport 25 -j ACCEPT
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