The Debian downloads mentions Official backported packages, and the link text is backports.org - the actual link is to a page on packages.debian.org, and doesn't find any backported packages (it searches for such on Debian Lenny) - You could probably make it a link to the search for the claws-mail package on any Debian suite. ( http://packages.debian.org/search?keywords=claws-mail ) Below there is a link is to the "instruction page" on backports.org which is a 404 now, correct page should probably be http://backports-master.debian.org/Instructions/ Also, "using backports on Debian Lenny" is mentioned - You could mention "on Debian Stable" instead, so you won't have to update it every time a new release of Debian is out.