Index: wp-admin/install.php
===================================================================
--- wp-admin/install.php	(revision 3000)
+++ wp-admin/install.php	(working copy)
@@ -179,7 +179,7 @@
 $admin_caps = serialize(array('administrator' => true));
 $wpdb->query("INSERT INTO $wpdb->usermeta (user_id, meta_key, meta_value) VALUES ({$wpdb->insert_id}, '{$table_prefix}capabilities', '{$admin_caps}');");
 
-$message_headers = 'From: ' . stripslashes($_POST['weblog_title']) . ' <wordpress@' . $_SERVER['SERVER_NAME'] . '>';
+$message_headers = 'From: "' . stripslashes($_POST['weblog_title']) . '" <wordpress@' . $_SERVER['SERVER_NAME'] . '>';
 $message = sprintf(__("Your new WordPress blog has been successfully set up at:
 
 %1\$s