SquidGuard is a URL redirector used to use blacklists with the proxysoftware Squid. There are two big advantages to squidguard: it is fast and it is free.
SquirrelMail with Apache
Apache Configuration
- Directory on an existing webserver
Edit/usr/local/apache2/conf/httpd.confto give access to Squirrelmail athttp://<yourserver>/squirrelmail:Alias /squirrelmail /var/websites/mail/htdocs
<Directory /var/websites/mail/htdocs>
Options Indexes
AllowOverride none
DirectoryIndex index.php
Order allow,deny
allow from all
</Directory> - Virtual Host setup
Edit/usr/local/apache2/conf/httpd.confto create a virtual host webmail.example.com:<VirtualHost *:80>
ServerAdmin postmaster@example.com
DocumentRoot /var/websites/mail/htdocs
ServerName webmail.example.comErrorLog /var/websites/mail/logs/mail-error_log
CustomLog /var/websites/mail/logs/mail-access_log combined<Directory /var/websites/mail/htdocs>
Options Indexes FollowSymLinks
AllowOverride All
Order allow,deny
Allow from all
</Directory>
</VirtualHost>
Securing Webmail
Assuming you've already created an SSL certificate according to the Apache SSL Instructions:
Add a RewriteRule in /usr/local/apache2/conf/extra/httpd-ssl.conf to force clients to connect to the webmail interface through an SSL encrypted session. If you don't want your internal users to be encrypted, adjust the REMOTE_ADDR RewriteCond to reflect your internal network. If you want all IPs encrypted, remove that condition altogether.
<Directory /usr/local/mail/htdocs>
RewriteEngine on
#Optional if you don't want a certain IP address range encrypted
#RewriteCond %{REMOTE_ADDR} !^192\.168\.0\.[0-9]+$
RewriteCond %{HTTPS} !=on
RewriteRule ^.*$ https://%{SERVER_NAME}%{REQUEST_URI} [L,R]
</Directory>
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Credits
Various bits of code, scripts, and procedures were put together with information from John Simpson's qmail.jms1.net website. It's an excellent resource on managing and setting up a Qmail server.