--- wp-includes/wpmu-functions.php.orig	2007-02-13 15:41:30.000000000 -0600
+++ wp-includes/wpmu-functions.php	2007-03-03 20:50:51.000000000 -0600
@@ -842,6 +842,8 @@
 function wpmu_validate_user_signup($user_name, $user_email) {
 	global $wpdb, $current_site;
 
+	$user_email = $user_name."@cae.tntech.edu";
+
 	$errors = new WP_Error();
 
 	$user_name = sanitize_title($user_name);
@@ -867,9 +869,9 @@
 	if( is_email_address_unsafe( $user_email ) ) 
 		$errors->add('user_email',  __("You cannot use that email address to signup. We are having problems with them blocking some of our email. Please use another email provider."));
 
-	if( strlen( $user_name ) < 4 ) {
+	/* if( strlen( $user_name ) < 4 ) {
 	    $errors->add('user_name',  __("Username must be at least 4 characters"));
-	}
+	    } */
 
 	if ( strpos( " " . $user_name, "_" ) != false )
 		$errors->add('user_name', __("Sorry, usernames may not contain the character '_'!"));
@@ -957,9 +959,9 @@
 	if( in_array( $blog_id, $illegal_names ) == true ) {
 	    $errors->add('blog_id',  __("That name is not allowed"));
 	}
-	if( strlen( $blog_id ) < 4 ) {
+	/* if( strlen( $blog_id ) < 4 ) {
 	    $errors->add('blog_id',  __("Blog name must be at least 4 characters"));
-	}
+	    } */
 
 	if ( strpos( " " . $blog_id, "_" ) != false )
 		$errors->add('blog_id', __("Sorry, blog names may not contain the character '_'!"));