一、先卸载sendmain

[root@ser ~]#  yum remove sendmail

二、安装postfix ,dovecot,cyrus-sasl

[root@ser ~]#  yum -y install postfix

[root@ser ~]#  yum -y install dovecot

[root@ser ~]#  yum -y install cyrus-sasl

三、修改postfix的配置文件

[root@ser ~]# vim /etc/postfix/main.cf

myhostname = mail.eimam.com

mydomain = eimam.com

myorigin = eimam.com

inet_interfaces =all

mynetworks = 192.168.1.0/240

relay_domains = yjw.com, $mydomain

mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain,       mail.$mydomain, www.$mydomain,

ftp.$mydomain

重启　postfix 服务

[root@ser ~]# service postfix restart

Shutting down postfix:                                    [  OK  ]

Starting postfix:                                             [  OK  ]

[root@ser ~]# chkconfig  postfix on

[root@ser ~]# chkconfig  dovecot on

修改dovecot的配置文件

vim /etc/dovecot.conf

protocols = imap imaps  pop3 pop3s

listen = *

在iptables　里开放２５，110，143端口

[root@ser ~]# vim /etc/sysconfig/iptables

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 110 -j ACCEPT

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 143 -j ACCEPT

重启iptables

[root@ser ~]# service iptables restart

Flushing firewall rules:                               [  OK  ]

Setting chains to policy ACCEPT: filter                [  OK  ]

Unloading iptables modules:                            [  OK  ]

Applying iptables firewall rules:                     [  OK  ]

Loading additional iptables modules: ip_conntrack_netbios_n[  OK  ]ntrack_ftp

[root@ser ~]# chkconfig  saslauthd on

修改 /etc/sysconfig/saslauthd

[root@ser ~]# vim /etc/sysconfig/saslauthd

# Directory in which to place saslauthd's listening socket, pid file, and so

# on.  This directory must already exist.

SOCKETDIR=/var/run/saslauthd

# Mechanism to use when checking passwords.  Run "saslauthd -v" to get a list

# of which mechanism your installation was compiled with the ablity to use.

MECH=shadow

# Additional flags to pass to saslauthd on the command line.  See saslauthd(8)

# for the list of accepted flags.

FLAGS=

修改 /usr/lib/sasl2/smtpd.conf

[root@ser ~]# vim /usr/lib64/sasl2/smtpd.conf

pwcheck_method: saslauthd

测试 saslauthd

[root@ser ~]# service saslauthd  restart

[root@ser ~]# testsaslautd  -u yjw -p '020304'

0: OK "Success."

在postfix 的配置文件中，添加以下内容，使其支持SMTP认证

[root@ser ~]#  vim /etc/postfix/main.cf

message_size_limit = 1073741824   # 邮件的大小为10M

default_process_limit = 50

default_destination_concurrency_limit = 20

smtpd_sasl_auth_enable = yes

smtpd_sasl_local_domain =  $myhostname

smtpd_sasl_application_name = smtpd

broken_sasl_auth_clients = yes

smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated,reject_unauth_destination

smtpd_client_restrictions = permit_sasl_authenticated

smtpd_sasl_security_options = noanonymous

测试 25端口

[root@ser ~]#  telnet mail.yjw.com 25 

Trying 192.168.1.2...

Connected to mail.yjw.com (192.168.1.2).

Escape character is '^]'.

220 mail.yjw.com ESMTP Postfix

EHLO  163.com

250-mail.yjw.com

250-PIPELINING

250-SIZE 10240000

250-VRFY

250-ETRN

250-AUTH LOGIN PLAIN

250-AUTH=LOGIN PLAIN

250-ENHANCEDSTATUSCODES

250-8BITMIME

250 DSN

quit

221 2.0.0 Bye

Connection closed by foreign host.

[root@ser ~]#

四、安装openwebmail

[root@ser ~]# vim /etc/yum.repos.d/openwebmail.repo 

[openwebmail]

## Thomas Chung

## 2008.05.29

name=Openwebmail for Fedora or Enterprise Linux

baseurl=http://openwebmail.org/openwebmail/download/redhat/rpm/release/

enabled=1

gpgcheck=1

gpgkey=http://openwebmail.org/openwebmail/download/redhat/rpm/release/RPM-GPG-KEY-openwebmail

#metadata_expire=0

若这样安装不成功，先安装 perl-Text-Iconv-1.4-1.2.el4.rf.i386.rpm

[root@ser ~]#  yum -y  install openwebmail

[root@ser ~]# cd /var/www/cgi-bin/openwebmail/

[root@ser openwebmail]# ./openwebmail-tool.pl  --init  #出现Y/N时 ，按N.

修改openwebmail 的一些配置文件

[root@ser etc]# vim dbm.conf

dbm_ext                 .db

dbmopen_ext             .db

dbmopen_haslock         no

[root@ser etc]]# cd defaults/

[root@ser defaults]#  vim dbm.conf

dbm_ext                 .db

dbmopen_ext             .db

dbmopen_haslock         yes

smtpserver  192.168.1.2

[root@ser defaults]#  vim openwebmail.conf

domainnames             yjw.com

smtpserver              192.168.1.2

authpop3_server         192.168.1.2

再次初始化openwebmail

[root@ser defaults]# cd  ../../openwebmail-tool.pl  --init 

出现Y/N 时，按Y。

把Postfix+Dovecot+Openwebmail 三者个格式统一下就行了

1.postfix 配置 main.cf

mail_spool_directory = /var/spool/mail

2.Dovecot 配置 Dovecot.conf

mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u

3.Openwebmail.conf

mailspooldir /var/spool/mail

五、安装httpd

[root@ser ~]# yum - y install httpd

[root@ser ~]# chkconfig httpd on

[root@ser ~]# service httpd restart

Stopping httpd:                                            [  OK  ]