RHEL5上安装邮件系统

RHEL5上安装邮件系统Postfix+dovecot+MailScanner+spamassassin+f-prot+PostfixAdmin+SquirrelMail
作者:LEO   [url]http://zqli.cublog.cn/[/url]
概要:

本文讲述在安装了RHEL5上,配置一台Postfix邮件服务器的过程。实现虚拟域、虚拟用户、POP3、POP3S、SMTP、SMTPS、IMAP、IMAPS、防毒、防SPAM、网页邮件功能。



涉及的软件

1.        Red Hat Enterprise Linux Server release 5 (Tikanga)

2.        MySQL

系统自带

用于存储虚拟域、虚拟用户等信息。

3.        Apache

系统自带

运行网页邮件SquirrelMail和PostfixAdmin时使用。

4.        PHP

系统自带

运行网页邮件SquirrelMail和PostfixAdmin时使用。

5.        Cyrus-sasl

系统自带

实现带验证的SMTP时使用。

6.        Courier authentication library

从 [url]http://download.chinaunix.net/[/url]下载

实现带验证的SMTP时使用。

7.        Postfix

从 [url]http://www.postfix.org[/url] 下载

一个MTA,虽然RHEL 4 自带Postfix,但因为其不支持SSL及Mysql,所以我们需要自行编译。

8.        PostfixAdmin

从 [url]http://www.postfixadmin.com/[/url] 下载

虚拟域、虚拟用户等信息是放在Mysql内的,安装PostfixAdmin后,就可以用浏览器管理这些信息。

9.        SquirrelMail

系统自带或从 [url]http://www.squirrelmail.org/download.php[/url]下载

一个基于IMAP的Webmail客户端。

10.        Dovecot

系统自带

提供POP3,POP3S,IMAP,IMAPS功能。

11.        F-prot

从 [url]http://www.f-prot.com[/url] 下载,Linux workstation 版个人使用是免费的

提供杀毒功能,据说速度和病毒库比开源的Clamav好。

12.        SpamAssassin

系统自带

提供过滤垃圾邮件功能。

13.        MailScanner

从 [url]http://www.mailscanner.info/[/url] 下载

Postfix 是使用MailScanner 调用f-prot 与SpamAssassin,或者其它调用方法效率更好,但MailScanner配置比较直观。



作者:LEO   [url]http://zqli.cublog.cn/[/url]

配置过程

1.        基本软件安装

默认方式安装RHEL5,不选中任何类型服务器(如WEB服务器,开发服务器,虚拟服务器等),安装上文中提及“系统自带”的软件。

下载其它需要的软件。



安装MySQL

[root@rhel5 Server]# rpm -ivh mysql-5.0.22-2.1.i386.rpm

[root@rhel5 Server]# rpm -ivh mysql-server-5.0.22-2.1.i386.rpm

[root@rhel5 Server]# chkconfig mysqld on



安装Apache

[root@rhel5 Server]# rpm -ivh httpd-2.2.3-6.el5.i386.rpm

[root@rhel5 Server]# rpm -ivh httpd-manual-2.2.3-6.el5.i386.rpm

[root@rhel5 Server]# chkconfig httpd on



安装PHP

[root@rhel5 Server]# rpm -ivh php-common-5.1.6-5.el5.i386.rpm

[root@rhel5 Server]# rpm -ivh php-pdo-5.1.6-5.el5.i386.rpm

[root@rhel5 Server]# rpm -ivh php-mysql-5.1.6-5.el5.i386.rpm

[root@rhel5 Server]# rpm -ivh php-cli-5.1.6-5.el5.i386.rpm

[root@rhel5 Server]# rpm -ivh php-5.1.6-5.el5.i386.rpm



安装Cyrus-sasl

[root@rhel5 Server]# rpm �Civh cyrus-sasl-2.1.22-4.i386.rpm



安装squirrelmail

[root@rhel5 Server]# rpm -ivh squirrelmail-1.4.8-4.el5.noarch.rpm



安装dovecot

[root@rhel5 Server]# rpm -ivh dovecot-1.0-1.2.rc15.el5.i386.rpm



安装spamassassin

[root@rhel5 Server]# rpm -ivh perl-IO-Zlib-1.04-4.2.1.noarch.rpm

[root@rhel5 Server]# rpm -ivh perl-Archive-Tar-1.30-1.fc6.noarch.rpm

[root@rhel5 Server]# rpm -ivh perl-Digest-SHA1-2.11-1.2.1.i386.rpm

[root@rhel5 Server]# rpm -ivh perl-Socket6-0.19-3.fc6.i386.rpm

[root@rhel5 Server]# rpm -ivh perl-IO-Socket-INET6-2.51-2.fc6.noarch.rpm

[root@rhel5 Server]# rpm -ivh perl-Net-SSLeay-1.30-4.fc6.i386.rpm

[root@rhel5 Server]# rpm -ivh perl-IO-Socket-SSL-1.01-1.fc6.noarch.rpm

[root@rhel5 Server]# rpm -ivh perl-Digest-HMAC-1.01-15.noarch.rpm

[root@rhel5 Server]# rpm -ivh perl-Net-IP-1.25-2.fc6.noarch.rpm

[root@rhel5 Server]# rpm -ivh perl-Net-DNS-0.59-1.fc6.i386.rpm

[root@rhel5 Server]# rpm -ivh spamassassin-3.1.7-4.el5.i386.rpm



[root@rhel5 ~]# tar xvf postfixadmin-2.1.0.gz

[root@rhel5 ~]# mv postfixadmin-2.1.0 /var/www/html/pa

[root@rhel5 ~]# service mysqld start

[root@rhel5 ~]# mysql -uroot < /var/www/html/pa/DATABASE_MYSQL.TXT

[root@rhel5 ~]# cp /var/www/html/pa/config.inc.php.sample /var/www/html/pa/config.inc.php

打开浏览器访问 [url]http://IP/pa[/url],然后按提示增加两个虚拟域名mailidc.cn 和 zqli.com,增加两个虚拟用户 [email protected][email protected]



[root@rhel5 ~]# vi /etc/httpd/conf/httpd.conf

加入以下内容,加强安全性,要不每个人不经认证都可以用postfixadmin

<Directory "/var/www/html/pa" >

Options FollowSymLinks

DirectoryIndex index.php

AllowOverride None

AuthType Basic

authname Private

authuserfile /var/phpaccess/leo

require valid-user

Order allow,deny

Allow from all

</Directory>



注意/var/phpaccess/leo是我的密码文件名

[root@rhel5 ~]# mkdir /var/phpaccess

[root@rhel5 ~]# touch /var/phpaccess/leo

[root@rhel5 ~]# cd /var/phpaccess/

[root@rhel5 phpaccess]# htpasswd -c leo leo  #添加用户leo

New password:

Re-type new password:

Adding password for user leo



然后我们就可以打开网页浏览器来访问了

[url]http://ip/pa[/url]

至此postfixadmin配置完毕。在这里我推荐对mysql比较了解的人更改默认的postfix连接密码:默认数据名为postfix,用户名密码都是postfix。我们下面的配置还是用回默认的用户名和密码。



作者:LEO   [url]http://zqli.cublog.cn/[/url]

安装postfix所依赖的包

[root@rhel5 Server]# rpm -ivh db4-devel-4.3.29-9.fc6.i386.rpm

[root@rhel5 Server]# rpm -ivh e2fsprogs-devel-1.39-8.el5.i386.rpm

[root@rhel5 Server]# rpm -ivh krb5-devel-1.5-17.i386.rpm

[root@rhel5 Server]# rpm -ivh zlib-devel-1.2.3-3.i386.rpm

[root@rhel5 Server]# rpm -ivh openssl-devel-0.9.8b-8.3.el5.i386.rpm

[root@rhel5 Server]# rpm -ivh mysql-devel-5.0.22-2.1.i386.rpm

[root@rhel5 Server]# rpm -ivh cyrus-sasl-devel-2.1.22-4.i386.rpm



编译、配置Postfix

先删除sendmail

[root@rhel5 ~]# rpm -e sendmail �Cnodeps

[root@rhel5 ~]# groupadd postfix

[root@rhel5 ~]# groupadd postdrop

[root@rhel5 ~]# useradd postfix -g postfix -c "Postfix user" -d /dev/null -s /sbin/nologin

[root@rhel5 ~]# tar zxvf postfix-2.4.3.tar.gz

[root@rhel5 postfix-2.4.3]# make -f Makefile.init makefiles 'CCARGS=-DHAS_MYSQL -I/usr/include/mysql -DUSE_TLS -DUSE_CYRUS_SASL -DUSE_SASL_AUTH -I/usr/include/sasl' 'AUXLIBS=-L/usr/lib/mysql -lmysqlclient -lz -lm -L/usr/lib -lssl -lcrypto -lsasl2'

[root@rhel5 postfix-2.4.3]# make

[root@rhel5 postfix-2.4.3]# make install

注:“make install”命令后的所有问题都直接敲回车键即可。



编辑/etc/postfix/main.cf 为以下内容

#=====================BASE=========================

myhostname = mail.mailidc.cn

mydomain = mailidc.cn

myorigin = $mydomain

mydestination = $myhostname localhost localhost.$mydomain

mynetworks = 192.168.1.0/24 127.0.0.0/8

inet_interfaces = all

#=====================Vritual Mailbox settings=========================

virtual_mailbox_base = /var/spool/mail

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:501

virtual_gid_maps = static:502

virtual_transport = virtual

maildrop_destination_recipient_limit = 1

maildrop_destination_concurrency_limit = 1

#====================QUOTA========================

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 try again later.

virtual_overquota_bounce = yes

#====================SASL========================

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,permit

smtpd_sasl_auth_enable = yes

smtpd_sasl_local_domain = $myhostname

smtpd_sasl_security_options = noanonymous

smtpd_sasl_application_name = smtpd

smtpd_banner=$myhostname ESMTP "Version not Available"



readme_directory = no

sample_directory = /etc/postfix

sendmail_path = /usr/sbin/sendmail

html_directory = no

setgid_group = postdrop

command_directory = /usr/sbin

manpage_directory = /usr/local/man

daemon_directory = /usr/libexec/postfix

newaliases_path = /usr/bin/newaliases

mailq_path = /usr/bin/mailq

queue_directory = /var/spool/postfix

mail_owner = postfix



编辑/etc/postfix/mysql_virtual_alias_maps.cf 为以下内容

user = postfix

password = postfix

hosts = localhost

dbname = postfix

table = alias

select_field = goto

where_field = address



编辑/etc/postfix/mysql_virtual_domains_maps.cf 为以下内容

user = postfix

password = postfix

hosts = localhost

dbname = postfix

table = domain

select_field = description

where_field = domain



编辑/etc/postfix/mysql_virtual_mailbox_limit_maps.cf 为以下内容

user = postfix

password = postfix

hosts = localhost

dbname = postfix

table = mailbox

select_field = quota

where_field = username



编辑/etc/postfix/mysql_virtual_mailbox_maps.cf 为以下内容

user = postfix

password = postfix

hosts = localhost

dbname = postfix

table = mailbox

select_field = maildir

where_field = username



配置SMTP 认证

编辑 /usr/lib/sasl2/smtpd.conf 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



安装Courier authentication library

[root@rhel5 ~]# tar jxvf courier-authlib-0.58.tar.bz2

[root@rhel5 ~]# cd courier-authlib-0.58

[root@rhel5 courier-authlib-0.58]# ./configure --prefix=/usr/local/courier-authlib --without-authpam --without-authldap --without-authpwd --without-authshadow --without-authvchkpw --without-authpgsql  --with-authmysql --with-mysql-libs=/usr/lib/mysql --with-mysql-includes=/usr/include/mysql --with-redhat  --with-authmysqlrc=/usr/local/courier-authlib/etc/authmysqlrc  --with-authdaemonrc=/usr/local/courier-authlib/etc/authdaemonrc CFLAGS="-march=i686 -O2 -fexpensive-optimizations" CXXFLAGS="-march=i686 -O2 -fexpensive-optimizations"



[root@rhel5 courier-authlib-0.58]# make

[root@rhel5 courier-authlib-0.58]# make install

[root@rhel5 courier-authlib-0.58]# chmod 755 /usr/local/courier-authlib/var/spool/authdaemon/

[root@rhel5 courier-authlib-0.58]# cp /usr/local/courier-authlib/etc/authdaemonrc.dist /usr/local/courier-authlib/etc/authdaemonrc



修改/usr/local/courier-authlib/etc/authdaemonrc 文件

authmodulelist="authmysql"

authmodulelistorig="authmysql"

daemons=10



编辑/usr/local/courier-authlib/etc/authmysqlrc 为以下内容,其中501,502 为postfix 用户的UID和GID。

MYSQL_SERVER         localhost

MYSQL_USERNAME       postfix

MYSQL_PASSWORD       postfix

MYSQL_SOCKET         /var/lib/mysql/mysql.sock

MYSQL_DATABASE       postfix

MYSQL_USER_TABLE     mailbox

MYSQL_CRYPT_PWFIELD   password

MYSQL_UID_FIELD       '501'

MYSQL_GID_FIELD       '502'

MYSQL_LOGIN_FIELD     username

MYSQL_HOME_FIELD     concat('/var/spool/mail/',maildir)

MYSQL_MAILDIR_FIELD   concat('/var/spool/mail/',maildir)

MYSQL_NAME_FIELD     name



[root@rhel5 courier-authlib-0.58]# cp courier-authlib.sysvinit /etc/init.d/courier-authlib

[root@rhel5 courier-authlib-0.58]# chkconfig --level 35 courier-authlib on

[root@rhel5 courier-authlib-0.58]# chmod 755 /etc/init.d/courier-authlib

[root@rhel5 courier-authlib-0.58]# service courier-authlib start



此时你已经拥有一台带验证的SMTP 服务器,用Outlook 、Foxmail测试一下吧,用户名采用 [email protected] 形式。到了这一步,可以正常地发信了。



作者:LEO   [url]http://zqli.cublog.cn/[/url]

增加SSL功能,配置SMTPS服务

在/etc/postfix/main.cf 增加以下内容

smtp_use_tls = yes

smtpd_use_tls = yes

smtp_tls_note_starttls_offer = yes

smtpd_tls_key_file = /etc/ssl/smtpd.pem

smtpd_tls_cert_file = /etc/ssl/smtpd.pem

smtpd_tls_CAfile = /etc/ssl/smtpd.pem

smtpd_tls_loglevel = 1

smtpd_tls_received_header = yes

smtpd_tls_session_cache_timeout = 3600s

tls_random_source = dev:/dev/urandom



生成证书

# mkdir /etc/ssl

# cd /etc/ssl

# openssl req -new -x509 -nodes -out smtpd.pem -keyout smtpd.pem -days 3650



重新启动postfix

# postfix reload



这时SMTPS功能应该能正常工作了。有能力测试的网友们请验证一下这功能。



配置Dovecot,增加IMAP,IMAPS,POP3,POP3S功能

由于Dovecot 是系统自带的,配置两个文件,再生成证书就可以了。



编辑 /etc/dovecot.conf 为以下内容

base_dir = /var/run/dovecot/

protocols = imap imaps pop3 pop3s

listen = *

ssl_disable = no

ssl_cert_file = /etc/pki/dovecot/certs/dovecot.pem

ssl_key_file = /etc/pki/dovecot/private/dovecot.pem

login_dir = /var/run/dovecot/login

default_mail_env = maildir:/var/spool/mail/%u/

auth default {

mechanisms = plain login digest-md5 cram-md5

  passdb sql {

    args = /etc/dovecot-mysql.conf

    }

  userdb sql {

    args = /etc/dovecot-mysql.conf

  }

}

first_valid_uid = 501





编辑 /etc/dovecot-mysql.conf 为以下内容

driver = mysql

connect = host=/var/lib/mysql/mysql.sock dbname=postfix user=postfix password=postfix

default_pass_scheme = CRYPT

password_query = SELECT password FROM mailbox WHERE username = '%u'

user_query = SELECT maildir, 501 AS uid, 502 AS gid FROM mailbox WHERE username = '%u'





生成证书

[root@rhel5 ssl]# mkdir /etc/ssl/certs

[root@rhel5 ssl]# mkdir /etc/ssl/private

[root@rhel5 ssl]# cd /usr/share/doc/dovecot-1.0/examples

[root@rhel5 examples]# sh mkcert.sh



启动Dovecot 服务

[root@rhel5 ~]# chown postfix /var/spool/mail/

# service dovecot start

# chkconfig --level 35 dovecot on



顺利的话,此时SMTP、SMTPS、POP3、POP3S已经配置完成。

作者:LEO   [url]http://zqli.cublog.cn/[/url]

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