安装与配置工作：
1、 安装并配置MYSQL：
（1）安装mysql
# tar -zxvf mysql-5.1.49.tar.gz
# cd mysql-5.1.49
# groupadd mysql
# useradd -g mysql -s /sbin/nologin -M mysql
# ./configure --prefix=/usr/local/mysql --with-charset=gbk --with-extra-charsets=all --enable-thread-safe-client --enable-local-infile --with-low-memory
# make && make install
# cp support-files/my-medium.cnf /etc/my.cnf
# chown -R mysql.mysql /usr/local/mysql/
# /usr/local/mysql/bin/mysql_install_db --user=mysql
# chown -R mysql.mysql /usr/local/mysql/var/
（2）启动数据库服务，并添加到自启动
# /usr/local/mysql/bin/mysqld_safe --user=mysql &
# cp support-files/mysql.server /etc/rc.d/init.d/mysqld
# chmod 755 /etc/rc.d/init.d/mysqld
# chkconfig --add mysqld
# chkconfig --levels 345 mysqld on
（3）配置库文件搜索路径
# echo "/usr/local/mysql/lib/mysql">>/etc/ld.so.conf
# ldconfig
#echo "export PATH=$PATH:/usr/local/mysql/bin">>/etc/profile
#source /etc/profile
（4）添加root密码
# /usr/local/mysql/bin/mysqladmin -u root password "xxttest"
2、 安装apache
安装Apache有两个要注意的地方，因为我这里用的Postfix的后台管理是extman这个程序，而它是通过CGI的方式来进行管理的，所以这里启用了suexec的功能，还有一个是关于网站的存放路径的，如果不指定，那么在启用suexec后会出现 suexec-docroot的错误。
（1） 安装apache
#tar -jxvf httpd-2.2.9.tar.bz2
#cd httpd-2.2.9
#./configure --prefix=/usr/local/apache2 --enable-so --enable-rewrite --enable-mods-shared=all --enable-suexec --with-suexec-caller=daemon --with-suexec-docroot=/var/www
#make
#make install
（2） 修改apache配置文件
#vi /usr/local/apache2/conf/httpd.conf
找到DocumentRoot “/usr/local/apache2/htdocs”
修改为：DocumentRoot “/var/www”(后文中我们还会注释掉此行，以启用虚拟主机)
找到<Directory “/usr/local/apache2/htdocs”>
修改为：<Directory “/var/www”>
找到
<Directory />
Options FollowSymLinks
AllowOverride None
Order deny,allow
Deny from all //这句改为Allow from all
</Directory>
启动apache
#/usr/local/apache2/bin/apachectl start
（3） 添加系统服务和自启动
# cp /usr/local/apache2/bin/apachectl /etc/rc.d/init.d/httpd
# vi /etc/rc.d/init.d/httpd
添加(#!/bin/sh下面)
# chkconfig: 2345 10 90
# description: Activates/Deactivates Apache Web Server
然后添加为系统服务和开机器自启动
# chkconfig --add httpd
# chkconfig httpd on
3、 安装PHP
（1）安装PHP
# tar -zxvf php-5.2.6.tar.gz
# cd php-5.2.6
# ./configure --prefix=/usr/local/php --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql=/usr/local/mysql/ --with-mysqli=/usr/local/mysql/bin/mysql_config --with-config-file-path=/usr/local/php --with-zlib --enable-mbstring=all
# make && make install
# cp php.ini-dist /usr/local/php/php.ini
（2）配置PHP
# vi /usr/local/apache2/conf/httpd.conf
添加：
AddType application/x-httpd-php .php
AddType application/x-httpd-php .php3
AddType application/x-httpd-php .phtml
找到DirectoryIndex index.html
修改为DirectoryIndex index.html index.php
（4） 修改selinux，启动apache
# setenforce 0
# chcon -c -v -R -u system_u -r object_r -t textrel_shlib_t /usr/local/apache2/modules/libphp5.so
# service httpd restart
# setenforce 1
如果不修改会提示：
httpd: Syntax error on line 105 of /usr/local/apache2/conf/httpd.conf: Cannot load /usr/local/apache2/modules/libphp5.so into server: /usr/local/apache2/modules/libphp5.so: cannot restore segment prot after reloc: Permission denied
4、 安装courier-authlib
（1） 首先需要安装expect：
yum install expect
（2） 安装courier-authlib
#groupadd -g 1000 vmail
#useradd -g 1000 -u 1000 -M -s /sbin/nologin vmail
# tar -jxvf courier-authlib-0.62.4.tar.bz2
# cd courier-authlib-0.62.4
#./configure --prefix=/usr/local/courier-authlib --without-stdheaderdir --sysconfdir=/etc --without-authuserdb --without-authpam --without-authldap --without-authpwd --without-authshadow --without-authvchkpw --without-authpgsql --without-authcustom --with-authmysql --with-mysql-libs=/usr/local/mysql/lib/mysql --with-mysql-includes=/usr/local/mysql/inculde/mysql --with-redhat --with-mailuser=vmail --with-mailgroup=vmail
# make && make install
# make install-migrate
# make install-configure
更新lib库文件搜索路径
# echo "/usr/local/courier-authlib/lib/courier-authlib/">>/etc/ld.so.conf
# ldconfig
（3） 修改配置文件
# vi /etc/authlib/authdaemonrc
authmodulelist="authmysql"
authmodulelistorig="authmysql"
daemons=10
DEBUG_LOGIN=2
# vi /etc/authlib/authmysqlrc
修改以下内容
MYSQL_SERVER localhost
MYSQL_USERNAME extmail
MYSQL_PASSWORD extmail
MYSQL_SOCKET /tmp/mysql.sock
MYSQL_PORT 3306
MYSQL_DATABASE extmail
MYSQL_USER_TABLE mailbox
MYSQL_CRYPT_PWFIELD password
MYSQL_UID_FIELD "1000"
MYSQL_GID_FIELD "1000"
MYSQL_LOGIN_FIELD username
MYSQL_HOME_FIELD concat("/var/mailbox/",homedir)
MYSQL_MAILDIR_FIELD concat("/var/mailbox/",maildir)
MYSQL_QUOTA_FIELD concat(quota,"S")
（4） 启动及加入到自动运行队列
# cp courier-authlib.sysvinit /etc/rc.d/init.d/courier-authlib
# chmod 755 /etc/rc.d/init.d/courier-authlib
# chkconfig --add courier-authlib
# chkconfig courier-authlib on
# service courier-authlib start
# chmod a+x /usr/local/courier-authlib/var/spool/authdaemon
5、 安装courier-imap
（1） 安装courier-imap
# tar -jxvf courier-imap-4.8.0.tar.bz2
# cd courier-imap-4.8.0
# ./configure --prefix=/usr/local/courier-imap --with-redhat --enable-unicode --disable-root-check --with-trashquota --without-ipv6 COURIERAUTHCONFIG="/usr/local/courier-authlib/bin/courierauthconfig"
# make && make install
# make install-configure
（2） 编辑配置文件启用pop3及imap
# vi /usr/local/courier-imap/etc/pop3d
修改POP3DSTART=NO
POP3DSTART=YES
# vi /usr/local/courier-imap/etc/imapd
修改IMAPDSTART=NO
IMAPDSTART=YES
（3） 启动及加入自动运行队列
# cp courier-imap.sysvinit /etc/rc.d/init.d/courier-imapd
# chmod 755 /etc/rc.d/init.d/courier-imapd
# chkconfig --add courier-imapd
# chkconfig courier-imapd on
# service courier-imapd start
6、 安装cyrus-sasl
（1） 先卸载本机自带的sasl
# rpm -qa |grep cyrus-sasl |xargs rpm -e --nodeps
# rm -rf /usr/lib/sasl
# rm -rf /usr/lib/sasl2
（2） 安装cyrus-sasl
# tar -zxvf cyrus-sasl-2.1.22.tar.gz
# cd cyrus-sasl-2.1.22
# ./configure --enable-plain --enable-cram --enable-digest --enable-login --enable-sql --disable-anon --disable-ntlm --disable-gssapi --disable-krb4 --disable-otp --disable-srp --disable-srp-setpass --with-mysql=/usr/local/mysql --with-mysql-includes=/usr/local/mysql/include/mysql --with-mysql-libs=/usr/local/mysql/lib/mysql --with-authdaemond=/usr/local/courier-authlib/var/spool/authdaemon/socket
# make && make install
（3） 共享链接库
# ln -sv /usr/local/lib/sasl2 /usr/lib/sasl2
# echo "/usr/local/lib">>/etc/ld.so.conf
# ldconfig
（4） 建立smtpd用户认证的配置文件
# vi /usr/local/lib/sasl2/smtpd.conf
pwcheck_method: saslauthd
mech_list: plain login
log_level:3
authdaemond_path:/usr/local/courier-authlib/var/spool/authdaemon/socket
（5） 创建运行时需要的目录
# mkdir -pv /var/state/saslauthd
（6） 启动并测试
# /usr/local/sbin/saslauthd -a shadow pam
# /usr/local/sbin/testsaslauthd -u root -p xxttest // xxttest 为root的密码
（7） 开机自动启动
# echo "/usr/local/sbin/saslauthd -a shadow pam">>/etc/rc.local
7、 安装postfix
（1） 首先卸载系统自带的sendmail
# service sendmail stop
# rpm -qa |grep sendmail |xargs rpm -e –nodeps
（2） 添加用户和安装
# groupadd -g 105 postfix
# useradd -g 105 -u 105 -M -s /sbin/nologin postfix
# groupadd -g 106 postdrop
# useradd -g 106 -u 106 -M -s /sbin/nologin postdrop
# tar -zxvf postfix-2.6.5.tar.gz
# cd postfix-2.6.5
# make makefiles "CCARGS=-DHAS_MYSQL -I/usr/local/mysql/include/mysql -DUSE_CYRUS_SASL -DUSE_SASL_AUTH -I/usr/local/include/sasl" "AUXLIBS=-L/usr/local/mysql/lib/mysql -lmysqlclient -lz -lm -L/usr/local/lib -lsasl2"
# make
# make install
（3） 按照以下的提示输入相关的路径([]号中的是缺省值，”]”后的是输入值)
install_root: [/]
tempdir: [/root/postfix-2.6.5] /tmp //其他的都是默认
config_directory: [/etc/postfix]
command_directory: [/usr/sbin]
daemon_directory: [/usr/libexec/postfix]
data_directory: [/var/lib/postfix]
html_directory: [no]
mail_owner: [postfix]
mailq_path: [/usr/bin/mailq]
manpage_directory: [/usr/local/man]
newaliases_path: [/usr/bin/newaliases]
queue_directory: [/var/spool/postfix]
readme_directory: [no]
sendmail_path: [/usr/sbin/sendmail]
setgid_group: [postdrop]
（4） 生成别名二进制文件
# newaliases
（5） 建立邮件存放目录
# mkdir -pv /var/mailbox
# chown -R vmail.vmail /var/mailbox
（6） 建立配置文件
# cd /etc/postfix/
# mv main.cf main.cf.old
# vi main.cf
添加下面的内容
#=====================BASE=========================
myhostname = mail.xxt.cn
mydomain = xxt.cn
myorigin = $mydomain
mydestination =
mynetworks = 192.168.0.0/16, 127.0.0.0/8
inet_interfaces = all
readme_directory = no
sample_directory = /etc/postfix
sendmail_path = /usr/sbin/sendmail
html_directory = no
setgid_group = postdrop
command_directory = /usr/sbin
manpage_directory = /opt/postfix/man
daemon_directory = /usr/libexec/postfix
newaliases_path = /usr/bin/newaliases
mailq_path = /usr/bin/mailq
queue_directory = /var/spool/postfix
mail_owner = postfix
#=====================Vritual 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:1000
virtual_gid_maps = static:1000
virtual_transport = maildrop:
maildrop_destination_recipient_limit = 1
maildrop_destination_concurrency_limit = 1
#====================QUOTA========================
message_size_limit = 52428800
mailbox_size_limit = 209715200
virtual_mailbox_limit = 209715200
virtual_create_maildirsize = yes
virtual_mailbox_extended = yes
virtual_mailbox_limit_maps = mysql:/etc/postfix/mysql_virtual_limit_maps.cf
virtual_mailbox_limit_override = yes
virtual_maildir_limit_message = Sorry, the user's maildir has overdrawn his diskspace quota, please try again later.
virtual_overquota_bounce = yes
#====================SASL========================
smtpd_helo_required = yes
disable_vrfy_command = yes
strict_rfc821_envelopes = yes
invalid_hostname_reject_code = 554
multi_recipient_bounce_reject_code = 554
non_fqdn_reject_code = 554
relay_domains_reject_code = 554
unknown_address_reject_code = 554
unknown_client_reject_code = 554
unknown_hostname_reject_code = 554
unknown_local_recipient_reject_code = 554
unknown_relay_recipient_reject_code = 554
unknown_sender_reject_code = 554
unknown_virtual_alias_reject_code = 554
unknown_virtual_mailbox_reject_code = 554
unverified_recipient_reject_code = 554
unverified_sender_reject_code = 554
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_sender_restrictions=permit_mynetworks,reject_sender_login_mismatch,reject_authenticated_sender_login_mismatch,reject_unauthenticated_sender_login_mismatch
notify_classes = bounce, 2bounce, delay, policy, protocol, resource, software
bounce_template_file = /etc/postfix/bounce.cf
2bounce_notice_recipient = postmaster
bounce_notice_recipient = postmaster
delay_notice_recipient = postmaster
error_notice_recipient = postmaster
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $mydomain
smtpd_sasl_security_options = noanonymous
smtpd_sasl_application_name = smtpd
smtpd_banner = Welcome to our $myhostname ESMTP,Warning: Version not Available!
alias_maps = hash:/etc/aliases
#==================clamd==========================
content_filter=amavisfeed:[127.0.0.1]:10024
（7） 添加为支持虚拟域和虚拟用户所用到的配置文件，其实是直接在extman中复制过去
# tar zxvf extman-1.1.tar.gz
# cd extman-1.1
# cp docs/mysql_virtual_* /etc/postfix/
（8） 启动postfix并加入到自启动
# /usr/sbin/postfix start
# echo "/usr/sbin/postfix start">>/etc/rc.local
8、 安装maildrop
（1） 安装和配置maildrop
# tar jxvf maildrop-2.5.0.tar.bz2
# cd maildrop-2.5.0
# ln -sv /usr/local/courier-authlib/bin/courierauthconfig /usr/bin/courierauthconfig
#yum install pcre-devel
#./configure --prefix=/usr/local/maildrop --enable-sendmail=/usr/sbin/sendmail --enable-trusted-users="rootvmail" --enable-syslog=1 --enable-maildirquota --enable-maildrop-uid=1000 --enable-maildrop-gid=1000 --with-trashquota--with-dirsync
# make && make install
# cp /usr/local/maildrop/bin/maildrop /usr/local/bin/
（2） 查看一下安装结果
# maildrop -v
maildrop 2.0.4 Copyright 1998-2005 Double Precision, Inc.
GDBM extensions enabled.
Courier Authentication Library extension enabled. //要保证这一行显示
Maildir quota extension enabled.
This program is distributed under the terms of the GNU General Public
License. See COPYING for additional information.
（3） 配置maildrop的日志文件
# vi /etc/maildroprc
logfile "/var/log/maildrop.log"
to "$HOME/Maildir"
VERBOSE="4"
或者
SHELL="/bin/sh"
logfile "/var/log/maildrop.log"
ACCOUNT=`echo "$LOGNAME" | cut -d@ -f1`
USERDOMAIN=`echo "$LOGNAME" | cut -d@ -f2`
############ Spam Filtering ###############
if (/^X-Spam-Flag: *YES/)
{
exception {
to "$HOME/Maildir/.Junk"
}
}
else
{
exception {
to "$HOME/Maildir"
}
}
下面的这个处理垃圾邮件，将垃圾邮件转移到垃圾邮件收件箱中
# touch /var/log/maildrop.log
# chown vmail.vmail /var/log/maildrop.log
（4） 配置Postfix
# vi /etc/postfix/master.cf
去掉下面两行前面的#
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient}
第二行改为
flags=DRhu user=vmail argv=/usr/local/bin/maildrop -w 90 -d ${user}@${nexthop} ${recipient} ${user} ${extension} {nexthop}
此处要注意argv=后边的maildrop要加上路径，否则会出现
temporary failure. Command output: pipe: fatal: pipe_command: execvp maildrop: No such file or directory
注意maildrop unix这行前边不能有空格,要不会出现以下错误提示
warning: connect to transport maildrop: No such file or directory
Oct 31 23:21:24 localhost postfix/error[2235]: BE0AE27DAF6: to=<jjq002@abc.com>,relay=none,delay=1443,delays=1443/0.24/0/0.02,dsn=4.3.0, status=deferred (mail transport unavailable)
注意flags=Drhu这一行前边有两个空格，要不会出现以下错（fatal: /etc/postfix/master.cf: line 100: bad transport type: user= vmail）。
注意前面要保留两个空格，不然会有问题
9、 安装配置Extmail和Extman
（1） 安装和配置Extmail
# tar -zxvf extmail-1.2.tar.gz
# mkdir /var/www/extsuite
# mv extmail-1.2 /var/www/extsuite/extmail
# cd /var/www/extsuite/extmail/
# cp webmail.cf.default webmail.cf
# vi webmail.cf
部分修改选项的说明：
SYS_USER_LANG = en_US
语言选项，可改作：
SYS_USER_LANG = zh_CN
SYS_MAILDIR_BASE = /home/domains
此处即为您在前文所设置的用户邮件的存放目录，可改作：
SYS_MAILDIR_BASE = /var/mailbox
SYS_MYSQL_USER = db_user
SYS_MYSQL_PASS = db_pass
以上两句句用来设置连接数据库服务器所使用用户名、密码和邮件服务器用到的数据库，这里修改为：
SYS_MYSQL_USER = extmail
SYS_MYSQL_PASS = extmail
SYS_MYSQL_HOST = localhost
指明数据库服务器主机名，这里默认即可
SYS_MYSQL_SOCKET = /var/lib/mysql/mysql.sock
连接数据库的sock文件位置，这里修改为：
SYS_MYSQL_SOCKET = /tmp/mysql.sock
SYS_MYSQL_TABLE = mailbox
SYS_MYSQL_ATTR_USERNAME = username
SYS_MYSQL_ATTR_DOMAIN = domain
SYS_MYSQL_ATTR_PASSWD = password
以上用来指定验正用户登录里所用到的表，以及用户名、域名和用户密码分别对应的表中列的名称；这里默认即可
SYS_AUTHLIB_SOCKET = /var/spool/authdaemon/socket
此句用来指明authdaemo socket文件的位置，这里修改为：
SYS_AUTHLIB_SOCKET = /usr/local/courier-authlib/var/spool/authdaemon/socket
修改 cgi执行文件属主为apache运行身份用户：
# chown -R vmail.vmail /var/www/extsuite/extmail/cgi/
（2） 安装配置Extman
# mv extman-1.1 /var/www/extsuite/extman
#cd /var/www/extsuite/extman
# mv webman.cf.default webman.cf
修改配置文件以符合本例的需要：
# vi /var/www/extsuite/extman/webman.cf
SYS_MAILDIR_BASE = /home/domains
此处即为您在前文所设置的用户邮件的存放目录，可改作：
SYS_MAILDIR_BASE = /var/mailbox
SYS_MYSQL_SOCKET = /var/lib/mysql/mysql.sock
此处修改为：
SYS_MYSQL_SOCKET = /tmp/mysql.sock
（3） 使用extman源码目录下docs目录中的extmail.sql和init.sql建立数据库：
# cd /var/www/extsuite/extman
# mysql -u root -p <docs/extmail.sql
# mysql -u root -p <docs/init.sql
（4） 修改cgi目录的属主：
chown -R vmail.vmail /var/www/extsuite/extman/cgi
（5） extman和extmail需要Perl-Unix-Syslog、DBD-Mysql和perl-GD的支持
#perl -MCPAN -e shell
然后一路回车后出现：
cpan>
然后我们输入：
cpan>install Unix::Syslog
cpan>install GD
cpan>install DBI
-----cpan>install DBD::mysql # DBD-Mysql目前最新的版本为DBD-mysql-4.006，但它和系统中的perl结合使用时会造成extmail无法正常使用，因此我们采用 3的版本
# tar -zxvf DBD-mysql-3.0008_1.tar.gz
# cd DBD-mysql-3.0008_1
# perl Makefile.PL
# make
# make install
（6） 建立extman和extmail的目录
# mkdir /tmp/extman
# chown -R vmail.vmail /tmp/extman/
# mkdir /tmp/extmail
# chown -R vmail.vmail /tmp/extmail/
（7） apache相关配置
# vi /usr/local/apache2/conf/httpd.conf
去掉这行前面的#号
Include conf/extra/httpd-vhosts.conf
# vi /usr/local/apache2/conf/extra/httpd-vhosts.conf
去后面的<VirtualHost>两段
<VirtualHost *:80>
....
</VirtualHost>
添加下面内容
<VirtualHost *:80>
ServerName mail.xxt.cn
DocumentRoot /var/www/extsuite/
ScriptAlias /extmail/cgi/ /var/www/extsuite/extmail/cgi/
Alias /extmail/ /var/www/extsuite/extmail/html/
ScriptAlias /extman/cgi/ /var/www/extsuite/extman/cgi/
Alias /extman/ /var/www/extsuite/extman/html/
SuexecUserGroup vmail vmail
</VirtualHost>
（8） 重启一下apache服务器
#service httpd restart
到此，就全配置完了
在浏览器中输入http://mail.xxt.cn/extman进入管理界面，默认内置账号是root@extmail.org，密码是 extmail*123*，添加一个域和用户
在http://mail.xxt.cn/extmail中登陆
