安装环境：CENTOS 7.3 Mysql Nginx Postfix Dovecotextmail，其他所有模块都按照 extmail 的结构进行配置修改。main.cf里设置virtual_transport = virtual，就表示对于包含在 virtual_mailbox_domains域名里的邮件，都使用 virtual 进行投递。mysql,ldap 等。mysql，原因是各个模块，包括 extmail 等对这个支持最好最方便最简单。在投递邮件的时候，需要确定一些数据，比如收件用户的 Maildir 的路径，保存邮件用的 uid，gid，邮箱容量等，这些数据需要 courier-authlib 来提供。postfix 作为 MTA(Mail Transfer Agent), 负责创建 smtp 服务（smtpd）接收本域用户或其他域名服务器投递来的邮件，负责向其他服务器投递（发送）邮件，管理邮件队列；courier-authlib 为 maildrop 提供与用户相关的信息查询；dovecot 提供系统的 POP3 和 IMAP 服务，同时给 postfix 提供 SMTP 的 SASL 认证服务。
创建邮箱存储目录 /var/mail，子目录结构为 ./[domain]/[username]
关闭Selinux,关闭firewalld防火墙
由于CentOS7默认安装的是MariaDB，所以要添加MySQL的yum源，有些编译需要的devel包只有epel扩展源有，所以把epel源也一并添加。
1 2 3 4 wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm rpm -ivh mysql-community-release-el7-5.noarch.rpm wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm rpm -ivh epel-release-latest-7.noarch.rpm
安装编译环境及其他所需要的包
1 2 3 4 yum install nginx vim gcc gcc-c++ openssl openssl-devel db4-devel ntpdate \ mysql mysql-devel mysql-server bzip2 php-mysql cyrus-sasl-md5 perl-GD perl-DBD-MySQL \ perl-GD perl-CPAN perl-CGI perl-CGI-Session cyrus-sasl-lib cyrus-sasl-plain cyrus-sasl \ cyrus-sasl-devel libtool-ltdl-devel telnet mail libicu-devel -y
1.卸载系统自带的postfix，删除postfix用户，重新指定uid、gid创建新用户postfix，postdrop
1 2 3 4 5 6 7 yum remove postfix -y userdel postfix groupdel postdrop groupadd -g 5000 postfix useradd -g postfix -u 5000 -s /sbin/nologin -M postfix groupadd -g 5001 postdrop useradd -g postdrop -u 5001 -s /sbin/nologin -M postdrop
再把存放邮件目录授权给新建的用户
1 2 chown vmail:vmail /var/mail chmod 700 /var/mail
2.下载源码包并编译安装
1 2 3 4 5 6 wget ftp://ftp.cuhk.edu.hk/pub/packages/mail-server/postfix/official/postfix-3.3.2.tar.gz tar xf postfix-3.3.2.tar.gz cd postfix-3.3.2 make makefiles 'CCARGS=-DHAS_MYSQL -I/usr/include/mysql -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/include/sasl -DUSE_TLS ' \ 'AUXLIBS=-L/usr/lib64/mysql -lmysqlclient -lz -lrt -lm -L/usr/lib64/sasl2 -lsasl2 -lssl -lcrypto' make && make install
make install 的时候会有个交互式的界面，自定义一些目录，我们这里只更改第二项临时文件目录为 /tmp/extmail，其他的全部默认。
3.改目录的属主和属组
1 2 3 4 chown -R postfix:postdrop /var/spool/postfix chown -R postfix:postdrop /var/lib/postfix/ chown root /var/spool/postfix chown -R root /var/spool/postfix/pid
4.修改postfix的配置文件
1 vim /etc/postfix/main.cf
1 2 3 4 5 6 7 8 myhostname = mail.example.com //设置主机名 mydomain = example.com //指定域名 myorigin = $mydomain //指明发件人所在的域名 inet_interfaces = //all指定postfix系统监听的网络接口 mynetworks_style = host //指定信任网段类型 mynetworks = 192.168.100.1/24, 127.0.0.0/8 //指定信任的客户端 relay_domains = $mydestination //指定允许中转邮件的域名 alias_maps = hash :/etc/aliases //设置邮件的别名
启动 postfix
启动后注意查看 /var/log/maillog 里是否有错误消息
5.用 telnet 测试是否正常
Yum install telnetTelnet 127.0.0.1 25填写 发件人 MAIL FROM:<test@domain.com>
填写收件人 RCPT TO:xxxx@163.com
写邮件内容 DATA 回车
1 2 3 4 - 输入标题 `Subject: test message` - 写内容 `test body` - 以 . 结束 - 若提示 `250 2.0.0 Ok: queued as 88D6D32A94` 则说明已发送
1.安装 dovecot
1 yum install -y dovecot dovecot-mysql
2.配置 dovecot
cd /etc/dovecot
添加下面几行
1 2 3 4 protocols = imap pop3 !include conf.d/*.conf Listen = * Base_dir = /var/run/dovecot/
3.设置认证方式cd conf.dvim 10-auth.confdisable_plaintext_auth = no
4.设置邮件存放目录
1 2 3 mail_location = maildir:~/Maildir mail_location = maildir:/var/mail/%d/%n/Maildir mail_privileged_group = mail
5.配置不启用SSL加密vim 10-ssl.confssl = novim 10-logging.conf
1 2 3 log_path = /var/log/dovecot.log info_log_path = /var/log/dovecot.info log_timestamp = "%Y-%m-%d %H:%M:%S "
7.修改 mysql 认证
1 2 cp auth-sql.conf.ext auth-sql.conf Vim auth-sql.conf
1 2 3 4 5 6 7 passdb { driver = sql # Path for SQL configuration file, see example-config/dovecot-sql.conf.ext args = /etc/dovecot/dovecot-mysql.conf} userdb { driver = sql args = /etc/dovecot/dovecot-mysql.conf}
8.编辑 dovecot 通过 mysql 认证的配置文件
1 vim /etc/dovecot/dovecot-mysql.conf
1 2 3 4 5 driver = mysql connect = host=localhost dbname=extmail user=extmail password=extmail default_pass_scheme = CRYPT password_query = SELECT username AS user,password AS password FROM mailbox WHERE username = '%u' user_query = SELECT maildir, uidnumber AS uid, gidnumber AS gid FROM mailbox WHERE username = '%u'
先下载courier-unicode-1.2并编译安装，否则编译会报如下错：configure: error: The Courier Unicode Library 1.2 appears not to be installed. You may need to install a separate development subpackage, in addition to the main package
1 2 3 4 5 wget https://sourceforge.net/projects/courier/files/courier-unicode/1.2/courier-unicode-1.2.tar.bz2 tar xf courier-unicode-1.2.tar.bz2 cd courier-unicode-1.2./configure make && make install
1.下载courier-authlib解压并编译
1 2 wget https://sourceforge.net/projects/courier/files/authlib/0.66.2/courier-authlib-0.66.2.tar.bz2 && tar xf courier-authlib-0.66.2.tar.bz2
编译：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 ./configure \ --prefix=/usr/local/courier-authlib \ --sysconfdir=/etc \ --without-authpam \ --without-authshadow \ --without-authvchkpw \ --without-authpgsql \ --with-authmysql \ --with-mysql-libs=/usr/lib64/mysql \ --with-mysql-includes=/usr/include/mysql \ --with-redhat \ --with-authmysqlrc=/etc/authmysqlrc \ --with-authdaemonrc=/etc/authdaemonrc \ --with-mailuser=postfix
安装：
2.配置chmod 755 /usr/local/courier-authlib/var/spool/authdaemon
1 2 cp /etc/authdaemonrc.dist /etc/authdaemonrc cp /etc/authmysqlrc.dist /etc/authmysqlrc
1 2 authmodulelist="authmysql" authmodulelistorig="authmysql"
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 MYSQL_SERVER localhost MYSQL_USERNAME extmail MYSQL_PASSWORD extmail MYSQL_SOCKET /var/lib/mysql/mysql.sock MYSQL_PORT 3306 MYSQL_DATABASE extmail MYSQL_USER_TABLE mailbox MYSQL_CRYPT_PWFIELD password DEFAULT_DOMAIN test.com MYSQL_UID_FIELD '5000' MYSQL_GID_FIELD '5000' MYSQL_LOGIN_FIELD username MYSQL_HOME_FIELD concat('/var/mailbox/' ,homedir) MYSQL_NAME_FIELD name MYSQL_MAILDIR_FIELD concat('/var/mailbox/' ,maildir)
3.Courier-authlib添加服务启动脚本及启动服务：
1 2 3 4 5 6 [root@localhost courier-authlib-0.66.2]# cp courier-authlib.sysvinit /etc/init.d/courier-authlib [root@localhost courier-authlib-0.66.2]# chmod +x /etc/init.d/courier-authlib [root@localhost courier-authlib-0.66.2]# chkconfig --add courier-authlib [root@localhost courier-authlib-0.66.2]# chkconfig courier-authlib on [root@localhost courier-authlib-0.66.2]# echo "/usr/local/courier-authlib/lib/courier-authlib" >> /etc/ld.so.conf.d/courier-authlib.conf [root@localhost courier-authlib-0.66.1]# ldconfig
1 service courier-authlib start
smtp以及虚拟用户相关的设置：vim /usr/lib64/sasl2/smtpd.conf //文件不存在，需要创建
1 2 3 4 pwcheck_method: authdaemond log_level: 3 mech_list: PLAIN LOGIN authdaemond_path:/usr/local/courier-authlib/var/spool/authdaemon/socket
vim /etc/postfix/main.cf
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = '' smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination broken_sasl_auth_clients=yes smtpd_client_restrictions = permit_sasl_authenticated smtpd_sasl_security_options = noanonymous virtual_mailbox_base = /var/mailbox virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf //这里的配置文件需在后面extman 里复制过来 virtual_mailbox_domains = mysql:/etc/postfix/mysql_virtual_domains_maps.cf virtual_alias_domains = virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 virtual_transport = virtual
extmail 和 extman 可到官网[http://www.extmail.org/download ]自行下载mkdir -p /var/www/extsuitetar xf extmail-1.2.tar.gz -C /var/www/extsuite/mv /var/www/extsuite/extmail-1.2/ /var/www/extsuite/extmail
2.更改extmail的配置文件cd /var/www/extsuite/extmail
1 cp webmail.cf.default webmail.cf
编辑配置文件：Vim webmail.conf
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 SYS_SESS_DIR = /tmp/extmail //更改属组为postfix SYS_UPLOAD_TMPDIR = /tmp/extmail/upload //需要使用 mkdir 创建 SYS_USER_LANG = zh_CN SYS_MIN_PASS_LEN = 8 SYS_MAILDIR_BASE = /var/mailbox SYS_MYSQL_USER = extmail SYS_MYSQL_PASS = extmail SYS_MYSQL_DB = extmail SYS_MYSQL_HOST = localhost SYS_MYSQL_SOCKET = /var/lib/mysql/mysql.sock SYS_MYSQL_TABLE = mailbox SYS_MYSQL_ATTR_USERNAME = username SYS_MYSQL_ATTR_DOMAIN = domain SYS_MYSQL_ATTR_PASSWD = password SYS_AUTHLIB_SOCKET = /usr/local/courier-authlib/var/spool/authdaemon/socket
3.建立临时文件目录与session目录mkdir -p /tmp/extmail/uploadchown -R postfix.postfix /tmp/extmail/
解压extmantar xf extman-1.1.tar.gz -C /var/www/extsuite/cd /var/www/extsuite/mv extman-1.1/ extman
更改 extman 配置cd extmancp webman.cf.default webman.cf
更改cgi目录属主属组chown -R postfix.postfix /var/www/extsuite/extman/cgi/chown -R postfix.postfix /var/www/extsuite/extmail/cgi/
导入数据库TYPE= MyISAM ，所以这里直接导入会出错，先编辑extmail.sql数据库文件，将TYPE=MyISAM更改为ENGINE=MyISAM
1 2 vim docs/extmail.sql :% s/TYPE/ENGINE/g
再需要修改my.cnf配置文件
1 2 mysql -uroot < extman/docs/extmail.sql mysql -uroot < extman/docs/init.sql
创建数据库用户 extmail 并授予权限
1 2 mysql> GRANT ALL ON extmail.* to extmail@'localhost' identified by 'extmail' ; mysql> FLUSH PRIVILEGES;
复制配置文件
1 2 cd /var/www/extsuite/extman/docs/cp mysql_virtual_* /etc/postfix/
为extman创建临时目录：
1 2 mkdir /tmp/extmanchown -R postfix.postfix /tmp/extman/
测试虚拟用户/usr/local/courier-authlib/sbin/authtest -s login postmaster@extmail.org extmail
1 2 3 4 5 6 7 8 Authentication succeeded. //显示这个表示成功，测试时使用的是postmaster@extmail.org，因为我们导入的数据库init.sql里面自带了这个。 Authenticated: postmaster@extmail.org (uid 5000, gid 5000) Home Directory: /var/mailbox/extmail.org/postmaster //这里需要注意/var/mailbox这个目录现在我们还没有创建，后面web访问的时候如果没有会报错,所以提前创建。 Maildir: /var/mailbox/extmail.org/postmaster/Maildir/ Quota: (none) Encrypted Password: $1$phz1mRrj$3ok6BjeaoJYWDBsEPZb5C0 Cleartext Password: extmail Options: (none)
测试smtp发信：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [root@localhost ~] cG9zdG1hc3RlckBleHRtYWlsLm9yZw== [root@localhost ~] ZXh0bWFpbA== [root@localhost ~] Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... Connected to localhost. Escape character is '^]' . 220 mail.daen.com ESMTP Postfix auth login 334 VXNlcm5hbWU6 cG9zdG1hc3RlckBleHRtYWlsLm9yZw== 334 UGFzc3dvcmQ6 ZXh0bWFpbA== 235 2.7.0 Authentication successful //成功 quit 221 2.0.0 Bye Connection closed by foreign host.
Nginx本身并不能解析cgi，extmail 自带了解析 cgi 的程序，但是有些地方需要修改下：
1 2 3 [root@localhost ~] SU_UID=postfix SU_GID=postfix
启动dispatch-init：
1 2 3 4 [root@localhost ~] Starting extmail FCGI server... [root@localhost ~] loaded ok
添加nginx虚拟主机：vim /etc/nginx/conf.d/extmail.conf
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 server { listen 8080 ; server_name mail.example.com; index index.html index.htm index.php index.cgi; root /var/www/extsuite/extmail/html/; location /extmail/cgi/ { fastcgi_pass 127.0.0.1:8888 ; fastcgi_index index.cgi; fastcgi_param SCRIPT_FILENAME /var/www/extsuite/extmail/cgi/$fastcgi_script_name ; include fcgi.conf; } location /extmail/ { alias /var/www/extsuite/extmail/html/; } location /extman/cgi/ { fastcgi_pass 127.0.0.1:8888 ; fastcgi_index index.cgi; fastcgi_param SCRIPT_FILENAME /var/www/extsuite/extman/cgi/$fastcgi_script_name ; include fcgi.conf; } location /extman/ { alias /var/www/extsuite/extman/html/; } access_log /var/log/extmail_access.log; }
创建fcgi.conf文件：vim /etc/nginx/fcgi.conf
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 fastcgi_param GATEWAY_INTERFACE CGI/1 .1 ;fastcgi_param SERVER_SOFTWARE nginx;fastcgi_param QUERY_STRING $query_string ;fastcgi_param REQUEST_METHOD $request_method ;fastcgi_param CONTENT_TYPE $content_type ;fastcgi_param CONTENT_LENGTH $content_length ;fastcgi_param SCRIPT_NAME $fastcgi_script_name ;fastcgi_param REQUEST_URI $request_uri ;fastcgi_param DOCUMENT_ROOT $document_root ;fastcgi_param SERVER_PROTOCOL $server_protocol ;fastcgi_param REMOTE_ADDR $remote_addr ;fastcgi_param REMOTE_PORT $remote_port ;fastcgi_param SERVER_ADDR $server_addr ;fastcgi_param SERVER_PORT $server_port ;fastcgi_param SERVER_NAME $server_name ;
安装Unix::Syslog：否则打开页面会无法显示提示需要安装Unix::Syslog
1 2 3 4 5 6 [root@localhost ~] [root@localhost /usr/local/src] [root@localhost /usr/local/src] [root@localhost /usr/local/src] [root@localhost /usr/local/src/Unix-Syslog-1.1] [root@localhost /usr/local/src/Unix-Syslog-1.1]
启动nginx，访问服务器IP的8080端口即可
extman的登录账户为root@extmail.org密码为extmail*123*，首次使用需要先添加域，添加之后再修改域。Web页面可以针对性的修改，作自由定制的登陆界面和自定义Logo.
Good Luck! And have fun!