Stuff relating to FreeBSD
Roundcube has a nice little plugin named "password" that allows your users to change their passwords using the Roundcube Webmail interface. However, the current "drivers" do not work very well in a secure environment. Most drivers need you to have the "sudo" command installed and enabled for the Apache HTTP user. Others require that they be run as root.
There comes a time when your FreeBSD root partition (or slice) is just too small to be of any use. You've already moved /var, /usr, and /tmp to separate disks, you've tried cleaning up some logs, clearing cache, and even run pkg clean. There just isn't anything else you can delete. The problem is it was initially created too small when FreeBSD installed.