Disabling SquirrelMail folders

We are not an IMAP shop, but we use SquirrelMail to provide webmail access to our users. Therefore we need a way to restrict folder access via SquirrelMail. I came up with this trick some day in 2005:

1. Edit <SquirrelMail installation directory>/functions/page_header.php and comment out the line:

   displayInternalLink ('src/folders.php', _("Folders"));

   This removes “Folders” from the menu, but still, they are directly available.

2. Assuming bash as the root shell:

   # cd <SquirrelMail installation directory>/src
   # for i in folders*.php
   do
        cp /dev/null $i
   done
   

and you are done.

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