搭建Postfix邮件服务器

（文章copy，不过一些点没注意到，补充了一些，其他自己搭建就知道失误在哪，错误百度，最后步骤是操作，打字是看不懂的可以自己查，需要请看下个文章，其中mail的用户可以多个自行添加，文章为加3）

1 将sendmail服务停止

[root@mail ~]# service sendmail  stop              //停止sendmail服务

Shutting down sm-client:                                   [  OK  ]

Shutting down sendmail:                                    [  OK  ]

2 安装配置dns (略)

MX记录 

3 安装postfix

[root@localhost ~]# cd /media/RHEL_5.5\ i386\ DVD/Server/

[root@localhost Server]# rpm -ivh postfix-2.3.3-2.1.el5_2.i386.rpm

4 配置postfix

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

myhostname = mail.159.cn

mydomain = 159.cn

myorigin = $mydomain

inet_interfaces = all

mydestination = $myhostname, $mydomain

mynetworks = 172.16.42.0, 127.0.0.0/8

relay_domains = 159.cn

wq—退出

5 在postfix配置虚拟别名

#virtual

virtual_alias_domains = sina.com

virtual_alias_maps = hash:/etc/postfix/virtual     //在main.cf文件中写入这两行

[root@mail ~]# vim /etc/postfix/virtual            //配置virtual

[root@mail ~]# postfix reload

postfix/postfix-script: refreshing the Postfix mail system

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

alias_maps = hash:/etc/aliases

alias_database = hash:/etc/aliases//检查postfix配置文件中有这两条

[root@mail ~]# vim /etc/aliases//配置用户别名

mail:   mail,mail1,mail2,mail3

[root@mail ~]# postalias /etc/aliases

[root@mail ~]# postfix reload

postfix/postfix-script: refreshing the Postfix mail system//注意这里错误一般是postalia服务器没开，还有防火墙限制，用了我挺多时间找

6  配置smtp

[root@mail ~]# rpm -qa | grep  sasl

cyrus-sasl-plain-2.1.22-5.el5_4.3

cyrus-sasl-lib-2.1.22-5.el5_4.3

cyrus-sasl-2.1.22-5.el5_4.3

[root@mail ~]# saslauthd -v

saslauthd 2.1.22

authentication mechanisms: getpwent kerberos5 pam rimap shadow ldap

[root@mail ~]# vi /etc/sysconfig/saslauthd

MECH=shadow                              //将认证方式改为shadow

[root@mail ~]# /etc/init.d/saslauthd start

Starting saslauthd:                                        [  OK  ]

[root@mail ~]# chkconfig --level 35 saslauthd on

[root@mail ~]# useradd mail1                  //创建一个mail1用户，用来测试

[root@mail ~]# passwd mail1

Changing password for user mail1.

New UNIX password:

BAD PASSWORD: it is too simplistic/systematic

Retype new UNIX password:

passwd: all authentication tokens updated successfully.

[root@mail ~]# testsaslauthd -u mail1 -p '123456'

0: OK "Success."                              //验证成功

在main.cf 中加入如下配置。

[root@localhost ~]# vi /etc/postfix/main.cf

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

[root@mail ~]# postfix reload                      //重新加载postfix

postfix/postfix-script: refreshing the Postfix mail system

[root@mail ~]# telnet  172.16.42.165  25              //测试

Trying 192.168.1.104...

Connected to mail.159.cn (192.168.1.104).

Escape character is '^]'.

220 mail.159.cn ESMTP Postfix

ehlo 159.cn

250-mail.159.cn

250-PIPELINING

250-SIZE 10240000

250-VRFY

250-ETRN

250-AUTH PLAIN LOGIN

250-AUTH=PLAIN LOGIN

250-ENHANCEDSTATUSCODES

250-8BITMIME

250 DSN

quit

221 2.0.0 Bye

Connection closed by foreign host.                  //测试成功

7 安装和配置dovecot

[root@mail Server]# rpm -ivh perl-DBI-1.52-2.el5.i386.rpm

warning: perl-DBI-1.52-2.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186

error: failed to stat /media/RHEL_5.5 i386 DVD: 没有那个文件或目录

Preparing...                ########################################### [100%]

1:perl-DBI               ########################################### [100%]

[root@mail Server]# rpm -ivh mysql-5.0.77-4.el5_4.2.i386.rpm

warning: mysql-5.0.77-4.el5_4.2.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186

error: failed to stat /media/RHEL_5.5 i386 DVD: 没有那个文件或目录

Preparing...                ########################################### [100%]

1:mysql                  ########################################### [100%]

[root@mail Server]# rpm -ivh dovecot-1.0.7-7.el5.i386.rpm

warning: dovecot-1.0.7-7.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186

error: Failed dependencies:

libpq.so.4 is needed by dovecot-1.0.7-7.el5.i386

[root@mail Server]#

[root@mail Server]# rpm -ivh postgresql-libs-8.1.18-2.el5_4.1.i386.rpm

warning: postgresql-libs-8.1.18-2.el5_4.1.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186

error: failed to stat /media/RHEL_5.5 i386 DVD: 没有那个文件或目录

Preparing...                ########################################### [100%]

1:postgresql-libs        ########################################### [100%]

[root@mail Server]# rpm -ivh dovecot-1.0.7-7.el5.i386.rpm

warning: dovecot-1.0.7-7.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186

error: failed to stat /media/RHEL_5.5 i386 DVD: 没有那个文件或目录

Preparing...                ########################################### [100%]

1:dovecot                ########################################### [100%]

[root@mail ~]#vim /etc/dovecot.conf

protocols = pop3 pop3s

protocol pop3 {

listen = *:10100

#     ..

   }

[root@mail ~]# service dovecot start

启动 Dovecot Imap：                                        [确定]

[root@mail ~]# chkconfig dovecot on

8cyrus-imapd服务安装于配置

Db4

cyrus-imapd

cyrus-imapd-perl

cyrus-imapd-utils

db4-utils

lm_sensors

 

[root@mail Server]# rpm -ivh cyrus-imapd-perl-2.3.7-7.el5_4.3.i386.rpm

warning: cyrus-imapd-perl-2.3.7-7.el5_4.3.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186

error: failed to stat /media/RHEL_5.5 i386 DVD: 没有那个文件或目录

Preparing...                ########################################### [100%]

1:cyrus-imapd-perl       ########################################### [100%]

[root@mail Server]#

[root@mail Server]# rpm -ivh cyrus-imapd-utils-2.3.7-7.el5_4.3.i386.rpm

[root@mail Server]# rpm -ivh db4-utils-4.3.29-10.el5.i386.rpm

[root@mail Server]# rpm -ivh lm_sensors-2.10.7-9.el5.i386.rpm

[root@mail Server]# rpm -ivh cyrus-imapd-2.3.7-7.el5_4.3.i386.rpm

[root@mail Server]# rpm -ivh cyrus-imapd-devel-2.3.7-7.el5_4.3.i386.rpm

[root@mail ~]# vim /etc/postfix/main.cf                  //修改以下文件

mailbox_transport = lmtp:unix:/var/lib/imap/socket/lmtp

[root@mail ~]# service cyrus-imapd restart

正在关闭cyrus-imapd：                                     [确定]

导出cyrus-imapd数据库：                                  [确定]

导入cyrus-imapd数据库：                                  [确定]

启动cyrus-imapd：                                         [确定]

[root@mail ~]# chkconfigcyrus-imapd on

[root@mail ~]# chkconfig --list cyrus-imapd

cyrus-imapd     0:关闭  1:关闭  2:启用  3:启用  4:启用  5:启用  6:关闭

10 添加用户，并设置用户邮箱

[root@mail ~]# passwd  cyrus

Changing password for user cyrus.

New UNIX password:

BAD PASSWORD: it is too simplistic/systematic

Retype new UNIX password:

passwd: all authentication tokens updated successfully.

[root@mail ~]# cat /etc/shadow

mail1:$1$QnL01QC.$LNczdCW9f3buqoxcRiRpk.:14772:0:99999:7::: //shadow

dovecot:!!:14772::::::

cyrus:$1$/8WvEEC8$6KVzTAY7ByqSyMRzMQkmS/:14772::::::

mail2:$1$HX.I.cOD$F.N2yM8VbbRyCVdynWf2K.:14772:0:99999:7:::

mail3:$1$gaE/q13U$lWKOj7d.aKeSW4ZuyvXKM0:14772:0:99999:7:::

mail4:$1$d.mlgRGf$hvaDYlOLY331C6MqBXpyD1:14772:0:99999:7:::

[root@mail ~]# /usr/bin/cyradm -u cyrus localhost       //创建用户邮箱，这里用3用户，如果是自己搭建测试，可以先配mail1

IMAP Password:

localhost.localdomain>createmailbox user.mail1

localhost.localdomain>createmailbox user.mail1.Send

localhost.localdomain>createmailbox user.mail1.Trash

localhost.localdomain>createmailbox user.mail1.Drafts

localhost.localdomain>setquota user.mail 3000

quota:3000                                       //设置用户邮箱配额

setquota: Mailbox does not exist

localhost.localdomain>createmailbox user.mail2

localhost.localdomain>createmailbox user.mail2.Send

localhost.localdomain>createmailbox user.mail2.Trash

localhost.localdomain>createmailbox user.mail2.Drafts

localhost.localdomain>createmailbox user.mail3

localhost.localdomain>createmailbox user.mail3.Send

localhost.localdomain>createmailbox user.mail3.Trash

localhost.localdomain>createmailbox user.mail3.Drafts

11 squirrelmail安装于配置

[root@localhost Server]# rpm -ivh squirrelmail-1.4.8-5.el5_4.10.noarch.rpm                        //安装squirrelmail

[root@mail ~]# /usr/share/squirrelmail/config/conf.pl

========================================================

中间的操作需要图，明天发

======================================

[root@mail ~]# vim  /etc/httpd/conf/httpd.conf          //修改apache配置（可以不配置）

ServerNamemail.159.cn:80

[root@mail ~]# service httpd restart             //重启apache服务

停止httpd：                                               [确定]

启动httpd：                                               [确定]

12 测试

本机测试，mail1给自己发信，mail2，mail3都同时收到了