dovecot + mysql

1.
yum install dovecot dovecot-mysql -y ##dovecot-mysql dovecot软件的插件，让此软件可以识别mysql
2.
vim /etc/dovecot/dovecot.conf
24 protocols = imap pop3 lmtp   #支持收件协议
48 login_trusted_network = 0.0.0.0/0 ##信任网络
49 disable_plaintext_quth =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myql的配置
cp /usr/share/doc/dovecot-2.2.2.10/example-config/dovecot-sql.conf.ext /etc/dovecot/dovecot-sql.conf.ext

vim /etc/dovecot/dovecot-sql.conf.ext
32 driver = mysql
71 connect = host=localhost dbname user=postuser password=postuser
78 default pass scheme = PLAIN
107 password_query = \
108 SELECT username, domain, password \
125 user_query = SELECT maildir, 666 AS uid,666 AS gid FROM emailuser WHERE username = '%u'

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_gid = 666    ##邮件文件查询用户身份
172 first_valid_gid = 666

systemctl restart dovecot

[kiosk@foundation18 Desktop]$ telnet 172.25.254.218 110
Trying 172.25.254.218...
Connected to 172.25.254.218.
Escape character is '^]'.
+OK [XCLIENT] Dovecot ready.
user [e-mail]
+OK
pass lee
+OK Logged in.
quit
+OK Logging out.

Connection closed by foreign host.

##空壳邮件
reset虚拟机,保证实验环境，关闭火墙
vim /etc/postfix/main.cf

76 myhostname = nullmail.example.com
83 mydomain = example.com
99 myorigin = westos.com
116 inet_interfaces = all
164 mydestination =
316 relayhost = 172.25.254.218
systemctl restart postfix
测试
mail root

在真实主机上查看