基于虚拟账号的邮件系统

首先依然是架设dns服务器

15 27 28 37 38 改为any

声明区域

产生并编辑区域文件

指明dns指向

安装必备的软件包

yum install httpd php php-mysql mysql mysql-server mysql-devel openssl-devel dovecot perl-DBD-MySQL tcl tcl-devel libart_lgpl libart_lgpl-devel libtool-ltdl libtool-ltdl-devel expect

下面开始配置

首先关闭sendmail

启动mysql并给以密码

启动身份验证服务

下面采用源码安装postfix

首先给postfix创建账号和组

将所需安装包拷到系统里

解压安装

[root@localhost postfix-2.8.2]# make makefiles 'CCARGS=-DHAS_MYSQL -I/usr/include/mysql -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/include/sasl -DUSE_TLS ' 'AUXLIBS=-L/usr/lib/mysql -lmysqlclient -lz -lm -L/usr/lib/sasl2 -lsasl2 -lssl -lcrypto'

Make

Make install 后面有需要选择出了临时目录 其他按照默认

生成别名二进制文件 newaliases

/postfix start

说明postfix可以启动了

给postfix 添加系统自启动

为postfix开启基于cyrus-sasl的认证功能

首先查询一下看postfix支持哪些验证：

在配置文件中加入下面的代码： vim /etc/postfix/main.cf

readme_directory = no

broken_sasl_auth_clients = yes

smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_invalid_hostname,reject_non_fqdn_hostname,reject_unknown_sender_domain,reject_non_fqdn_sender,reject_non_fqdn_recipient,reject_unknown_recipient_domain,reject_unauth_pipelining,reject_unauth_destination

smtpd_sasl_auth_enable = yes

smtpd_sasl_local_domain = $myhostname

smtpd_sasl_security_options = noanonymous

smtpd_banner = Welcome to our $myhostname ESMTP,Warning: Version not Available!

~

编辑此文件/usr/lib/sasl2/smtpd.conf

增加

pwcheck_method: saslauthd

mech_list: PLAIN LOGIN

首先切换到[root@localhost init.d]# cd /usr/lib/sasl2/ 将Sendmail.conf 拷一份到smtpd.conf

再加上上面那句话

重启saslauthd

再查可看到已具有验证功能

安装Courier authentication library

切换过去安装

./configure --prefix=/usr/local/courier-authlib --sysconfdir=/etc --with-authmysql --with-mysql-libs=/usr/lib/mysql --with-mysql-includes=/usr/include/mysql --with-redhat --with-authmysqlrc=/etc/authmysqlrc --with-authdaemonrc=/etc/authdaemonrc --with-ltdl-lib=/usr/lib --with-ltdl-include=/usr/include

Make

Make install

安装完成后修改 文件权限 以便下面的操作拥有权限

修改/etc/authdaemonrc 文件

authmodulelist="authmysql"

authmodulelistorig="authmysql"

daemons=10

编辑/etc/authmysqlrc 为以下内容，其中2525，2525 为postfix 用户的UID和GID。

MYSQL_SERVER localhost

MYSQL_PORT 3306 (指定mysql监听的端口，这里使用默认的3306)

MYSQL_USERNAME extmail (这时为后文要用的数据库的所有者的用户名)

MYSQL_PASSWORD extmail (密码)

MYSQL_SOCKET /var/lib/mysql/mysql.sock

MYSQL_DATABASE extmail

MYSQL_USER_TABLE mailbox

MYSQL_CRYPT_PWFIELD password

MYSQL_UID_FIELD '2525'

MYSQL_GID_FIELD '2525'

MYSQL_LOGIN_FIELD username

MYSQL_HOME_FIELD concat('/var/mailbox/',homedir)

MYSQL_NAME_FIELD name

MYSQL_MAILDIR_FIELD concat('/var/mailbox/',maildir)

# cp courier-authlib.sysvinit /etc/init.d/courier-authlib

# chmod 755 /etc/init.d/courier-authlib

# chkconfig --add courier-authlib

# chkconfig --level 2345 courier-authlib on

结果

新建虚拟用户邮箱所在的目录，并将其权限赋予postfix用户：

#mkdir �C-pv /var/mailbox

#chown �CR postfix /var/mailbox

接下来重新配置SMTP 认证，编辑 /usr/lib/sasl2/smtpd.conf ，确保其为以下内容：

pwcheck_method: authdaemond

log_level: 3

mech_list:PLAIN LOGIN

authdaemond_path:/usr/local/courier-authlib/var/spool/authdaemon/socket

让postfix支持虚拟域和虚拟用户

1、编辑/etc/postfix/main.cf，添加如下内容：

########################Virtual Mailbox Settings########################

virtual_mailbox_base = /var/mailbox

virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf

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:2525

virtual_gid_maps = static:2525

virtual_transport = virtual

maildrop_destination_recipient_limit = 1

maildrop_destination_concurrency_limit = 1

##########################QUOTA Settings########################

message_size_limit = 14336000

virtual_mailbox_limit = 20971520

virtual_create_maildirsize = yes

virtual_mailbox_extended = yes

virtual_mailbox_limit_maps = mysql:/etc/postfix/mysql_virtual_mailbox_limit_maps.cf

virtual_mailbox_limit_override = yes

virtual_maildir_limit_message = Sorry, the user's maildir has overdrawn his diskspace quota, please Tidy your mailbox and try again later.

virtual_overquota_bounce = yes

2、使用extman源码目录下docs目录中的extmail.sql和init.sql建立数据库：

# cd extman-1.1/docs

-------------------------------------------------------------------------------------------------------------

# mysql -u root -p <extmail.sql

# mysql -u root -p &lt;init.sql

数据库导入后的结果

# cp mysql* /etc/postfix/

3、授予用户extmail访问extmail数据库的权限

mysql> GRANT all privileges on extmail.* TO extmail@localhost IDENTIFIED BY 'extmail';

mysql&gt; GRANT all privileges on extmail.* TO [email protected] IDENTIFIED BY 'extmail';

mysql&gt;FLUSH PRIVILEGES; 让设置的内容生效

service postfix restart

配置dovecot

编辑/etc/dovecot.conf

修改下面内容

auth default {

mechanisms = plain

passdb sql {

args = /etc/dovecot-mysql.conf

}

userdb sql {

args = /etc/dovecot-mysql.conf

}

……

建立并编辑连接数据库的文件

Vim /etc/dovecot-mysql.conf

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'

接下来启动dovecot服务：

# service dovecot start

# chkconfig dovecot on

安装Extmail-1.2

1、安装

# tar zxvf extmail-1.2.tar.gz

# mkdir -pv /var/www/extsuite

# mv extmail-1.2 /var/www/extsuite/extmail

# cp /var/www/extsuite/extmail/webmail.cf.default /var/www/extsuite/extmail/webmail.cf

2、修改主配置文件

#vim /var/www/extsuite/extmail/webmail.cf

3、apache相关配置

修改主配置文档建立虚拟主机

修改 cgi执行文件属主为apache运行身份用户：

[root@mail extmail]# chown -R postfix.postfix /var/www/extsuite/extmail/cgi/

[root@mail extmail]# service httpd restart

# vim /etc/httpd/httpd.conf

User postfix

Group postfix

安装extman

[root@mail ~]# mv extman-1.1 /var/www/extsuite/extman

[root@mail extman]# cp /var/www/extsuite/extman/webman.cf.default /var/www/extsuite/extman/webman.cf

[root@mail extman]# vim /var/www/extsuite/extman/webman.cf

12 SYS_MAILDIR_BASE = /var/mailbox

21 SYS_CAPTCHA_ON = 0

:wq

[root@mail extman]# chown -R postfix.postfix /var/www/extsuite/extman/cgi/

[root@mail extman]# vim /etc/httpd/conf/httpd.conf

加入997 、998行

992 <VirtualHost 192.168.100.123:80>

993 ServerName mail.yeah.net

994 DocumentRoot /var/www/extsuite/extmail/html/

995 ScriptAlias /extmail/cgi /var/www/extsuite/extmail/cgi

996 Alias /extmail /var/www/extsuite/extmail/html

997 ScriptAlias /extman/cgi /var/www/extsuite/extman/cgi

998 Alias /extman /var/www/extsuite/extman/html

999 </VirtualHost>

[root@mail extman]# mkdir -pv /tmp/extman

[root@mail extman]# chown postfix.postfix /tmp/extman

4、依赖关系的解决

extmail将会用到perl的Unix::syslogd功能，您可以去http://search.cpan.org搜索下载原码包

进行安装。

[root@mail ~]# tar zxvf Unix-Syslog-1.1.tar.gz

[root@mail ~]# cd Unix-Syslog-1.1

[root@mail Unix-Syslog-1.1]# perl Makefile.PL【编译】

[root@mail Unix-Syslog-1.1]# make install【安装】

[root@mail Unix-Syslog-1.1]# service httpd restart

测试结果