Please install the ConfirmAccount extension on enwiki. http://www.mediawiki.org/wiki/Extension:ConfirmAccount. The discussion in support of this is at the URL.
The settings to be used should be:
$wgAccountRequestExtraInfo = false;
$wgAllowAccountRequestFiles = false;
$wgConfirmAccountSaveInfo = false;
$wgAccountRequestWhileBlocked = true;
$wgMakeUserPageFromBio = false;
$wgUseRealNamesOnly = false;
$wgAccountRequestMinWords = 0;
$wgAccountRequestToS = false;
$wgGroupPermissions['*']['createaccount'] = true;
$wgConfirmAccountNotice = false;
$wgAccountRequestTypes = array(
0 => array( 'users', 'user' )
);
$wgGroupPermissions['*']['createaccount'] = true;
$wgGroupPermissions['bureaucrat']['lookupcredentials'] = false;
$wgGroupPermissions['bureaucrat']['confirmaccount'] = false;
$wgGroupPermissions['bureaucrat']['requestips'] = false;
A new user group should be created to use the system. It should be assignable by sysops (like rollback) and give the 'confirmaccount' and 'requestips' rights. ('lookupcredentials' isn't needed)
Version: unspecified
Severity: enhancement
URL: https://en.wikipedia.org/wiki/Wikipedia_talk:Request_an_account/Archive_3#Account_Request_extension