postfix + squirrelmail

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一、前言

二、配置postfix

三、安装squirrelmail

四、测试squirrelmail

五、squirrelmail常见错误及排除

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一、前言

   postfix是Wietse Venema在IBM的GPL协议之下开发的MTA（邮件传输代理）软件。postfix是Wietse Venema想要为使用最广泛的sendmail提供替代品的一个尝试。在Internet世界中，大部分的电子邮件都是通过sendmail来投递的，大约有100万用户使用sendmail，每天投递上亿封邮件。这真是一个让人吃惊的数字。Postfix试图更快、更容易管理、更安全，同时还与sendmail保持足够的兼容性。

   SquirrelMail是一套基于标准的，采用PHP4开发Webmail邮件系统。它内置纯PHP支持的IMAP和SMTP协议，所有页面都遵循HTML4.0标准(没有使用JavaScript支持)，以便最大限度兼容更多浏览器上。它对系统要求非常低，并且安装和配置非常容易。SquirrelMail具备一个客户端邮件程序所应拥有的一切功能，包括支持增强型的MIME、地址薄、文件夹操作等等功能。

二、配置postfix

# yum install postfix
# vim /etc/postfix/main.cf

75 myhostname = mail.abc.com

定义本地主机名

83 mydomain = abc.com

本地域名

99 myorigin = $mydomain

引用本地域名

113 inet_interfaces = all

114 #inet_interfaces = $myhostname

115 #inet_interfaces = $myhostname, localhost

116 #inet_interfaces = localhost

开启所有端口

164 #mydestination = $myhostname, localhost.$mydomain, localhost,

165 mydestination = $myhostname, localhost.$mydomain, localhost, $mydomai

264 mynetworks = 127.0.0.0/8

267 broken_sasl_auth_clients = yes

268 smtpd_sasl_auth_enable = yes

269 smtpd_sasl_security_options = noanonymous

270 #smtpd_sasl_application_name = smtpd

271 smtpd_client_restrictions = permit_sasl_authenticated,reject

272 #smtpd_client_restrictions = permit_sasl_authenticated

273 smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,

   reject_unauth_destination

添加身份验证，sasl的配置

# service postfix start
# service saslauthd start

三、安装squirrelmail

# yum install httpd php
# tar -zxvf squirrelmail-webmail-1.4.22.tar.gz -C /var/www/html/
# cd /var/www/html/
# mv squirrelmail-webmail-1.4.22/ webmail
# cd webmail
# ./configure

仅需更改以下三点即可。

 Server Settings    abc.com

 Default Language   zh_CN

 Default Charset    gb2312

根据doc/INSTALL文档修改配置

修改配置

# cd /var/www/html/webmail
# chown -R apache:apache data/
# mkdir /var/local/squirrelmail
# cd /var/local/squirrelmail/
# mkdir attach
# chgrp -R apache attach/
# chmod 730 attach/
# vim /var/www/html/webmail/config/config.php
64 $data_dir    = '/var/www/html/webmail/data/';
65 $attachment_dir = '/var/local/squirrelmail/attach/';
# service httpd start

四、测试squirrelmail

1.本地测试

# echo -n '[email protected]' |openssl base64
dXNlcjFAYWJjLmNvbQ==
# echo -n '123' |openssl base64
MTIz
# telnet 127.0.0.1 25
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
220 mail.abc.com ESMTP Postfix
EHLO 127.0.0.1
250-mail.abc.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
auth login dXNlcjFAYWJjLmNvbQ==
334 UGFzc3dvcmQ6
MTIz
235 2.7.0 Authentication successful
mail from:[email protected]
250 2.1.0 Ok
rcpt to:[email protected]
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
subject:1
1111111111111111
.
250 2.0.0 Ok: queued as 15812A2E9E
quit
221 2.0.0 Bye
Connection closed by foreign host.
You have new mail in /var/spool/mail/root
# mail
Heirloom Mail version 12.4 7/29/08.  Type ? for help.
"/var/spool/mail/root": 1 messages 1 new
> N  1 [email protected]         Wed Mar  5 03:33  15/465   "1"
& 1
Message  1:
From [email protected]  Wed Mar  5 03:33:06 2014
Return-Path: <[email protected]>
X-Original-To: [email protected]
Delivered-To: [email protected]
subject:1
Date: Wed,  5 Mar 2014 03:32:31 -0800 (PST)
From: [email protected]
To: undisclosed-recipients:;
Status: R
1111111111111111
& q

2.浏览器访问http://192.168.30.10/webmail

squirrelmail登陆界面。(建议关闭防火墙和SElinux)

squirrelmail主界面，可以查看邮件。

五、squirrelmail常见错误及排除

1.登陆后出现错误，提示权限不够。

建议关闭防火墙和SElinux

2.登陆后出现错误，提示拒绝连接。

安装dovecot并开启IMAP服务。

# yum install dovecot
# service dovecot start

3.squirrelmail找不到用户邮箱位置

# vim /etc/dovecot/conf.d/10-mail.conf
25 mail_location = mbox:~/mail:INBOX=/var/mail/%u
# service dovecot restart

4.INBOX错误，将用户添加到mail组即可。

# usermod -a -G mail user1

5.Error opening ../data/default_pref

# chown -R apache:apache data/

6.登陆后无法发送邮件。

# vim /etc/postfix/main.cf
271 #smtpd_client_restrictions = permit_sasl_authenticated,reject

PS：su user2与su - user2的区别

# su user2
$ mail
/var/spool/mail/root: Permission denied
# su - user2
Password:
$ mail
Heirloom Mail version 12.4 7/29/08.  Type ? for help.
"/var/spool/mail/user2": 1 messages
>   1 [email protected]         Wed Mar  5 04:43  30/874   "1"