# Squirrelmail

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SquirrelMail is a lightweight webmail provider with IMAP/IMAPS support. The SquirrelMail site can generally answer all your questions. SquirrelMail promotes itself by saying:

    SquirrelMail is a standards-based webmail package written in PHP. It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure HTML 4.0 (with no JavaScript required) for maximum compatibility across browsers. See: http://squirrelmail.org/index.php

## Installing Squirrelmail

(An alternative and easier version is available here[broken link: invalid section])

### Available Versions

SquirrelMail is available in two flavors. Version 1.4 and version 1.5. Version 1.4 is the stable version while 1.5 is the development version. Both are available in either a compressed tar archive or through svn. The development version contains a newer interface and features not found in the stable release. Plugins that extend the functionality of both versions are available (Calendar, Spelling, etc.)

Note: I have used the development version for several years and have only had a couple of issues which were resolved with the developer in a matter of hours after first reporting the issue on the SquirrelMail mailing list.

### Install Details

You will need to configure your mail package before you can use SquirrelMail. Installing SquirrelMail is straight forward:

Note: I prefer dovecot, but you can use just about any mail package you want. If you access your mail via secure IMAP (on port 993, etc.) and you have disabled regular IMAP (port 143) for security reasons, then I would avoid UW-IMAP due to difficulties in communicating with localhost via secure IMAP.

Obtain the SquirrelMail version of choice at: http://squirrelmail.org/download.php

Regardless of which version you download or checkout, the installation is the same. After you have obtained the SquirrelMail package:

- Place the contents (the entire squirrelmail directory) in your document root. For Arch, that will be under /srv/http (other distributions can be in /var/www/html, /srv/www/htdocs).
- Create directories outside of your document root for the SquirrelMail "data" and "attachment" directories. Example: "mkdir -p /usr/local/share/sqmail/{data,attach}" which will create the directories under /usr/local/share/sqmail. You then must make the directories readable and writable by the web server. On Arch, "chown -R http:http /usr/local/share/sqmail
- Configure SquirrelMail (as root) by running the perl script /srv/http/squirrelmail/config/conf.pl. Simply fill in the information specific to your configuration. Note, there are preconfigured setting groups for different mail packages (dovecot, courier, UW, etc...) This will help. If you need more help, the SquirrelMail site is a great resource.
- Make sure you turn on the option under "11. tweaks" to "Allow remote config test" to allow you to check the configuration if you are not doing your configuration from localhost. (turn it off when you are done with all test and your satisfied with your setup)
- You will need to modify /etc/php/php.ini to change a few setting to accommodate SquirrelMail. Open /etc/php/php.ini and modify the following settings:
  - memory_limit = 128M ; must be at least 32M
  - post_max_size = 16M ; controls the maximum attachment size
  - open_basedir = /srv/http/:/srv/www:/home/:/tmp/:/usr/share/pear/:/usr/local/share/sqmail/

    You simply need to add the path to your SquirrelMail data and attachment directories, shown above as ":/usr/local/share/sqmail/"

- Reload the webserver configuration: "/etc/rc.d/apache reload"
- When you are done with the setting and choosing plugins in conf.pl and done with modifying php.ini, just point your browser to http://your.server.com/squirrelmail/configcheck.php to test your configuration. Fix any problems you encounter. When done, disable "Allow remote config test" in conf.pl.

Now you should be able to point your browser to http://your.server.com/squirrelmail and login. As the exit to conf.pl says "Happy SquirrelMailing!"

## Tweaks & Recommended Settings

TBD at a later time ;-)

Category:

- Mail server

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