Cài đặt như sau:

#cd /usr/ports/mail/squirrelmail

#make

#make install

Sau khi hoàn tất, cấu hình như sau:

#cd /usr/local/www/squirrelmail

#./configure

Sau đó chỉnh file httpd.còn và thêm vào một Alias như sau:

Alias /webmail /usr/local/www/squirrelmail/

Sau đó vào check webmail ăằng link: http://yourdomain.com/webmail

Lưu ý là cần phải cài Imapd trước mới chạy được nhé. Imapd có thể chọn: Courier-imap, Dovecot, cyrus-imapd. Trong bài viết này không hướng dẫn cài imapd.

Để cài đặt Squirrelmail
Mời bạn vào trang http://www.squirrelmail.org/download.php
Để down bộ cài về squirrelmail-1.4.15.tar.gz
$ cp squirrelmail-1.4.15.tar.gz /var/www/html
$ cd /var/www/html/
$ tar xfz squirrelmail-1.4.15.tar.gz
$ mv squirrelmail-1.4.15 squirrelmail
$ cd squirrelmail/config/
$ cp config_default.php config.php


Sau đó bạn cấu hình
$squirrelmail_default_language = 'en_US';

$domain = 'example.com';
$imapServerAddress = 'localhost';
$imapPort = 143;
$useSendmail = true;
$smtpServerAddress = 'localhost';
$smtpPort = 25;

Thiết lập Apache để chạy squirrelmail
vi /etc/httpd/conf/httpd.conf


Alias /mail "/var/www/html/squirrelmail/"

<Directory "/var/www/html/squirrelmail/">
Options Indexes MultiViews
AllowOverride None
Order allow,deny
Allow from all
</Directory>

Sau đó khởi động lại apache
service httpd restart

Mở trình duyệt lên và chạy
http://localhost/mail


Trong trường hợp bạn muốn chạy http://localhost là ra squirrelmail ngay thì hãy chỉnh tham số
DocumentRoot = /var/www/html/squirrelmail/


Thân

If you are using Linux system accounts as your mail accounts, you can install the change_passwd plugin to enable SquirrelMail to provide a password change utility.
Install the SquirrelMail Change Password Plugin



1. Connect to your SquirrelMail server and note down its version.



2. Download the Change Passwd 4.2 and Compatibility 2.0.11 plugins.



3. Extract the downloaded files and put them into the /usr/share/squirrelmail/plugins directory.



4. From a Terminal window, type in /usr/share/squirrelmail/config/conf.pl and press Enter. This will launch the SquirrelMail Configuration utility.
If your Terminal window has a white background, make sure that the colors are off by looking for the command Turn color on. If the command is Turn color off, type in C and press Enter to turn the colors off. This will ensure that you will be able to read all of the text.



5. Type in 8 and press Enter to list the Plugins submenu.



6. Install the change_passwd plugin by typing in the number corresponding to it and press Enter. When you are done, type in q and press Enter to quit then type in y and press Enter to save your changes.



7. If your version of SquirrelMail is not 1.4.13 and higher or 1.5.1 and higher, you need to patch your SquirrelMail source. Go to /usr/share/squirrelmail/plugins/compatibility and apply the compatibility patch by typing in the command below. patch -p0 < patches/compatibility_patch-1.4.8.diff
Replace 1.4.8 with your SquirrelMail version.



8. In the /usr/share/squirrelmail/plugins/change_passwd directory, copy the file config.sample.php and save it as config.php. Edit config.php and review the default settings.
Here are some useful settings in config.php

* $minimumPasswordLength - Minimum length of the password.
* $seeOutput - Shows the output of the change password program. Useful for tracing problems.
* $changePasswdInLogin - Change password from the login form.

Test the SquirrelMail Change Password



1. Login to SquirrelMail and go to the Options page. You should see the new Change Password section.



2. Click the Change Password link to view the new Change Password page.

Mình cũng đang cài Squirrelmail làm webmail cho Postfix, nhưng mình không muốn đánh địa chỉ : http://localhost/webmail mà thay thế bằng "http://www.linux-mail.com/webmail thì mình phải làm như thế nào?

Xin các bạn chỉ mình cách làm ...Thanks

Hi chào bạn, việc đánh địa chỉ localhost thực ra đó chỉ là thay thế gõ địa chỉ IP. Bạn muốn có tên miền linux-mail.com thì phải setup một DNS riêng. Bạn có thể tham khảo trong diễn đàn này.
Chúc bạn thành công!