linux运维-dovecot+postfix和空壳邮件

dovecot+mysql

1.安装服务：
yum install dovecot dovecot-mysql -y   

##dovecot-mysql dovecot软件的插件，让软件可以识别mysql

2.更改配置文件：
vim /etc/dovecot/dovecot.conf

     24 protocols = imap pop3 lmtp           ##支持收件协议



     48 login_trusted_networks = 0.0.0.0/0   ##信任网络
     49 disable_plaintext_auth = no      ##开启明文认证



  vim/etc/dovecot/conf.d/10-auth.conf

     123 !include auth-sql.conf.ext     ##开启mysql的认证方式



 #生成dovecot读取mysql的配置
   cp/usr/share/doc/dovecot-2.2.10/example-config/dovecot-sql.conf.ext/etc/dovecot/dovecot-sql.conf.ext

   vim/etc/dovecot/dovecot-sql.conf.ext

     32 driver = mysql          ##数据库类型



     71 connect = host=localhost dbname=emailuser=postuser password=postuser ##查询时用到库、用户、密码



     78 default_pass_scheme = PLAIN     ##默认认证方式为明文
     107 password_query = \         ##查询密码匹配
     108  SELECT username, domain, password \

     109  FROM users WHERE username = '%u' AND domain = '%d'



     125   user_query = SELECT maildir, 666 AS uid, 666 AS gid FROM emailuserWHERE     username = '%u'    ##查询邮件内容



  vim /etc/dovecot/conf.d/10-mail.conf

     30 mail_location = maildir:/home/vmail/%d/%n   ##指定邮件位置



     168 first_valid_uid = 666          ##邮件文件查询用户身份



     175 first_valid_gid = 666



    systemctl restart dovecot

空壳邮件
    vim /etc/postfix/main.cf

    75 myhostname =nullmail.example.com

    83 mydomain = example.com

    99 myorigin=westos.com

    113 inet_interfaces = all

    164 mydestination=

    316 relayhost=172.25.254.122