This plugin loads at Joomla! startup and checks if the domain used in the URL matches the one specified in the parameters. If it does not, the plugin gracefully redirects the visitor to the exact same URL, replacing the domain with the preferred one.
Useful if you can't (or won't) modify your .htaccess files for Apache redirection. Or if you can't write Rewrite Rules, just like me…
Very little documentation is provided, as there really is only one parameter to set. Support by mail only to the author.
Version 1.0.1 with updated language files (more clear instructions).