centos install mail server

Posted by wxianfeng Sat, 31 Jul 2010 16:04:00 GMT

环境:centos 5.5 + postfix + dovecot +SASL + Squirrelmail

postfix 提供smtp服务,dovecot 提供pop3,imap服务,sasl提供smtp认证服务, Squirrelmail 是webmail 用来收发邮件之用,最近需要发送email的服务,本想使用gmail的smtp的,后来索性就自己搭了个,以便熟悉mail服务器的搭建过程,一路下来,发现还真不是一件容易的事 ,这个还是比较简单的,还有加密传输,反垃圾邮件处理等等东西没弄,搭建过程中遇到的问题比较多, 问题最大的地方是 例如我用 gmail 发送邮件给 wxianfeng@wxianfeng.com, 邮件收不到,gmail中也没有显示退信信息,说明邮件还是发出去了,最后发现是 postfix 的配置文件 mynetworks 配置错误 ……

上面的是我mail服务器搭建的选择,当然你也可以选择别的mail服务器 , 例如 smtp你可以选择sendmail , 或者你可以看看别人的mail服务器是什么,eg:

[root@li165-150 ~]# telnet vic360.com 25     # 或者  telnet vic360.com smtp
Trying 221.6.104.142...
Connected to vic360.com.
Escape character is '^]'.
220 mail.vic360.com Kerio MailServer 6.3.1 ESMTP ready
quit
221 2.0.0 SMTP closing connection
Connection closed by foreign host.
[root@li165-150 ~]# telnet vic360.com pop3 # 或者  telnet vic360.com 110
Trying 221.6.104.142...
Connected to vic360.com.
Escape character is '^]'.
+OK Kerio MailServer 6.3.1 POP3 server ready <12927.1280636072@mail.vic360.com>

可以看出 vic360 的mail服务器选择的是 Kerio MailServer , 25 一般是 smtp的port , 110 是 pop3 的port

[root@li165-150 ~]# telnet mail.beebuyer.com smtp
Trying 218.202.225.66...
Connected to mail.beebuyer.com.
Escape character is '^]'.
220 mobase.cn ESMTP MDaemon 9.5.1; Sun, 01 Aug 2010 12:21:07 +0800
quit
221 See ya in cyberspace
Connection closed by foreign host.
[root@li165-150 ~]# telnet mail.beebuyer.com pop3
Trying 218.202.225.66...
Connected to mail.beebuyer.com.
Escape character is '^]'.
+OK mobase.cn POP MDaemon 9.5.1 ready <MDAEMON-F201008011221.AA2142193MD8611@mobase.cn>

可以看出 beebuyer.com 的 mail server 是 MDaemon 9.5.1

okay , 下面介绍 我的 mail server的搭建过程:

1,安装 postfix ,卸载sendmail

yum update
yum remove sendmail
yum install postfix

2,配置 postfix

>vim /etc/postfix/main.cf 
myhostname = mail.wxianfeng.com
mydomain = wxianfeng.com
myorigin = $mydomain
inet_interfaces = $myhostname, localhost , 173.230.155.150 # 173.230.155.150 是我服务器IP
mydestination = $myhostname,localhost.$mydomain , localhost ,  $mydomain,mail.$mydomain,www.$mydomain
mynetworks = 0.0.0.0/0
home_mailbox = Maildir/ # email的存放地址 , 默认是存放在file中,你还可以配置mysql , 存到mysql 中

3,安装配置SASL + TLS

>yum install cyrus-sasl
>vim /etc/postfix/main.cf 
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = wxianfeng.com
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
broken_sasl_auth_clients = yes

4,安装配置 Dovecot

>yum install dovecot
>vim /etc/dovecot.conf
protocols = pop3 pop3s imap imaps
mail_location = maildir:~/Maildir/    # email的存放地址
pop3_uidl_format = %08Xu%08Xv
auth default {
mechanisms = plain login
passdb pam {
}
userdb passwd {
}
socket listen {
client {
path = /var/spool/postfix/private/auth
mode = 0660
user = postfix
group = postfix
}
}
}

5,安装配置 Squirrelmail

>yum install squirrelmail
>vim  /etc/httpd/conf.d/squirrelmail.conf
Alias /webmail /usr/share/squirrelmail # 配置apache
>/usr/share/squirrelmail/config/conf.pl
2 -> 1  Domain : wxianfeng.com # 配置域名
10 -> 2   Default Charset : utf-8  # 配置编码

6,重启所有服务

/etc/init.d/postfix restart
/etc/init.d/dovecot restart
/etc/init.d/saslauthd restart
service httpd restart

7,测试安装是否成功

http://wxianfeng.com:8080/webmail/src/configtest.php

http://wxianfeng.com:8080/webmail 访问, 可以 收发email

8,创建mail用户

>adduser wxianfeng
>passwd  12345

9,本地测试收发email

smtp发:

>telnet localhost smtp
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 mail.wxianfeng.com ESMTP Postfix
>ehlo localhost
250-mail.wxianfeng.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
>mail from:wxianfeng
250 2.1.0 Ok
>rcpt to:wxianfeng
250 2.1.5 Ok
>data
354 End data with <CR><LF>.<CR><LF>
test
.    # 以 . 结束输入
250 2.0.0 Ok: queued as 9729067C17
quit
221 2.0.0 Bye
Connection closed by foreign host.

查看 发送队列

[root@mail ~]# cd /home/wxianfeng/Maildir/new
[root@mail new]# ls
1185669817.Vfd00I18012M795756.mail.wxianfeng.com
[root@mail new]# cat 1185669817.Vfd00I18012M795756.mail.wxianfeng.com

pop3 收 测试:

[root@li165-150 ~]# telnet localhost pop3
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
+OK Dovecot ready.
user wxianfeng
+OK
pass 12345
+OK Logged in.
list
+OK 11 messages:
1 483
2 453
3 809
4 853
5 2029
6 2671
7 2721
8 2870
9 3178
10 2749
11 2702
.
retr 1
+OK 483 octets
Return-Path: <wxianfeng@wxianfeng.com>
X-Original-To: wxianfeng@wxianfeng.com
Delivered-To: wxianfeng@wxianfeng.com
Received: from localhost (localhost [127.0.0.1])
        by li165-150.wxianfeng.com (Postfix) with ESMTP id D31F91331F
        for <wxianfeng@wxianfeng.com>; Thu, 29 Jul 2010 03:35:50 -0400 (EDT)
Message-Id: <20100729073619.D31F91331F@li165-150.wxianfeng.com>
Date: Thu, 29 Jul 2010 03:35:50 -0400 (EDT)
From: wxianfeng@wxianfeng.com
To: undisclosed-recipients:;

test
.

10 , 域名 设置

必须保证你的 域名设置那有 mail.wxianfeng.com 指向你的 ip , 或者你有 *.wxianfeng.com 的 泛域名 解析

11,添加 MX record
在你的域名商那添加 MX record ,例如我的在godaddy,什么是mx record: 邮件交换记录(MX record)是一个DNS资源记录类型,它指出哪个主机能够处理一个特定域的e-mail。把godaddy默认的mx record删除掉,我的默认是下面的这两个,删除之:

Priority    Host               Goes To                                                   TTL
10              @               mailstore1.secureserver.net             1 Hour
0                @               smtp.secureserver.net                         1 Hour

添加自己的:

   Priority          Host          Goes To                           TTL          
10 @ mail.wxianfeng.com 1 Hour

设置好后 可能过段时间才生效,测试生效方法,.下面结果说明已经生效:

[root@li165-150 ~]# host -t mx wxianfeng.com 
wxianfeng.com mail is handled by 10 mail.wxianfeng.com.

12,解决Squirrelmail 内中文email的乱码
在option(选项)那设置显示语言为 中文简体即可

13,如果你的Squirrelmail 不可以 收发邮件,可以直接远程telnet 测试

>telnet mail.wxianfeng.com 25
mail from:wxianfeng
rcpt to:wang.fl1429@gmail.com
.........


>telnet mail.wxianfeng.com 110
user wxianfeng
pass 12345
list
retr 1
......

如果telnet 可以发送成功 , 就没 问题….

14,查看错误
如果过程中出现错误,可以随时查看log

>tail -f  /var/log/maillog

that’s all , just do it

See :
http://www.mysql-apache-php.com/mailserver.htm
http://www.linuxmail.info/postfix-smtp-server-howto-centos-5/

douban blog 认领标识:

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This entry was posted on Sat, 31 Jul 2010 16:04:00 GMT and Posted in . You can follow any any response to this entry through the Atom feed. You can leave a comment or a trackback from your own site.

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