As I'm going on holiday for a few weeks and don't want the mail to pile up in my mailbox, I attempted to unsubscribe at the address given when I joined the mailing list (http://lists.gforge.inria.fr/cgi-bin/mailman/options/pharo-project/nick.payne%40internode.on.net), but I just get an Apache error page:

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, [no address given] and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Apache/2.2.9 (Debian) mod_auth_pgsql/2.0.3 DAV/2 SVN/1.5.1 mod_python/3.3.1 Python/2.5.2 mod_ssl/2.2.9 OpenSSL/0.9.8g Server at lists.gforge.inria.fr Port 80

Nick