Users of the MediaWiki with ENotif/EConfirm patch (formerly known as EAuthent, which differs from that) might consider to use one of the newer versions.

Documentation/download http://meta.wikipedia.org/wiki/Enotif for patched versions of MediaWiki 1.4.4 and for rel1.5alpha1 as of yesterday, Helpdesk http://test.leuksman.com/index.php/Enotif (as long as leuksman exists)