Email remains one of the most common and useful applications of the Internet. Being able to read and write email even when your only access to the Net is somebody else's Web browser is a must. This said, does it still make sense to run, in the age of Gmail and all the other big free email providers, your own email server and Webmail interface? For me, the answer is certainly yes at many levels, of which the most important is not wishing to risk data and contacts being lost if Google, for whatever reason, freezes my account.
How to install Squirrelmail plugins
Unless you feel like editing configuration files by hand, the general procedure to install such software is command-line based (you need to run a Perl script), but it's very simple.No matter what you need, the first Squirrelmail plugin to install these days is the one called Compatibility, because it's the one that "allows any other plugin access to the functions and special variables needed to make it backward (and forward) compatible with most versions of Squirrelmail in wide use".
Once you have downloaded and unpacked the Compatibility code in the plugins subfolder, go inside its directory ("compatibility") and run this command, replacing X.X.X with the number of the Squirrelmail version you're actually using:
patch -p0 < patches/compatibility_patch-X.X.X.diff
The reason is that this is a meta-plugin that doesn't really need to be "installed"; it has to be there to provide some PHP functions and modify the rest of the source code to use them.
Once you have taken care of compatibility in this way, find the plugin you want in the official directory, download it in the plugins subfolder of your Squirrelmail installation, uncompress and expand it:
tar xf [plugin-name].tar.gz
Unless the files in the plugin "docs" directory say otherwise (check them!) the next steps in almost all cases are the following:
- Go inside the plugin folder.
- If it exists, copy the config_example.php file inside config.php and modify its settings (for what my own experience is worth, you'll be fine with the defaults in most cases).
- Go to the config subfolder in the Squirrelmail installation root and launch the conf.pl script you'll find there (i.e., type at the prompt cd ../../config/ ; ./conf.pl)
- Then type "8" to enter the Plugins submenu, type the number of the plugin you want to activate as shown in that submenu, type "S" and press Enter to save the configuration changes, and then type "Q" to quit the script.
Now that installation is out of the way, let me introduce my preferred plugins.
SquirrelMail supports multiple address book backends. The simplest solution, which is the one I use and is adequate for single users or small groups, is to store addresses in plain text files. However, Squirrelmail may also use relational databases or LDAP.
Whatever format it uses, no email client is complete without an easy way to add entries to its address book. I installed for this purpose the Add Address plugin. It installs with the standard procedure above and, once it's there, it provides these extra functions:
- add addresses from headers and (optionally) body of the current received or outgoing message to the address book
- presents (see figure) a list of the addresses found, to edit or comment them before they are actually added
- (optionally) verifies the DNS records of the corresponding domains
A big problem of using email from unknown computers is security. As far as I am concerned, the first real problem here is not somebody reading my email as much as somebody grabbing my password with a keylogger when I log in.
The Squirrelmail Virtual Keyboard Plugin takes care of this problem. Once it's installed, it will add to the Squirrelmail login page a link that opens a keyboard window, in which you can click your password instead of typing it. Cool, huh? The only trick here is that the most up to date (i.e. safe) version of this plugin is not on its home page yet, but posted to a forum. What you see in the picture is the default Virtual Keyboard layout. If you don't like it, no problem! You can set different windows and key sizes, keyboard layouts and other parameters in the config.php file.
Marco Fioretti is a freelance writer and teacher whose work focuses on the impact of open digital technologies on education, ethics, civil rights, and environmental issues.