Index: library/Zend/Validate/EmailAddress.php
===================================================================
--- library/Zend/Validate/EmailAddress.php	(revision 25028)
+++ library/Zend/Validate/EmailAddress.php	(working copy)
@@ -63,17 +63,26 @@
     );
 
     /**
+     * As of RFC5753 (JAN 2010), the following blocks are no logner reserved:
+     *   - 128.0.0.0/16
+     *   - 191.255.0.0/16
+     *   - 223.255.255.0/24
+     * @see http://tools.ietf.org/html/rfc5735#page-6
+     *
+     * As of RFC6598 (APR 2012), the following blocks are now reserved:
+     *   - 100.64.0.0/10
+     * @see http://tools.ietf.org/html/rfc6598#section-7
+     *
      * @see http://en.wikipedia.org/wiki/IPv4
      * @var array
      */
     protected $_invalidIp = array(
         '0'   => '0.0.0.0/8',
         '10'  => '10.0.0.0/8',
+        '100' => '100.64.0.0/10',
         '127' => '127.0.0.0/8',
-        '128' => '128.0.0.0/16',
         '169' => '169.254.0.0/16',
         '172' => '172.16.0.0/12',
-        '191' => '191.255.0.0/16',
         '192' => array(
             '192.0.0.0/24',
             '192.0.2.0/24',
@@ -81,7 +90,6 @@
             '192.168.0.0/16'
         ),
         '198' => '198.18.0.0/15',
-        '223' => '223.255.255.0/24',
         '224' => '224.0.0.0/4',
         '240' => '240.0.0.0/4'
     );