Index: library/Zend/Validate/EmailAddress.php
===================================================================
--- library/Zend/Validate/EmailAddress.php	(revision 24123)
+++ library/Zend/Validate/EmailAddress.php	(working copy)
@@ -527,8 +527,9 @@
         $this->_setValue($value);
 
         // Split email address up and disallow '..'
+        // and disallow addresses ending with a '.'
         if ((strpos($value, '..') !== false) or
-            (!preg_match('/^(.+)@([^@]+)$/', $value, $matches))) {
+            (!preg_match('/^(.+)@([^@]+[^.])$/', $value, $matches))) {
             $this->_error(self::INVALID_FORMAT);
             return false;
         }
Index: tests/Zend/Validate/EmailAddressTest.php
===================================================================
--- tests/Zend/Validate/EmailAddressTest.php	(revision 24123)
+++ tests/Zend/Validate/EmailAddressTest.php	(working copy)
@@ -554,6 +554,17 @@
     {
         $this->assertTrue($this->_validator->getDomainCheck());
     }
+    
+    /**
+     * @group ZF-11222
+     * @group ZF-11451
+     */
+    public function testEmailAddressesWithTrailingDotInHostPartAreRejected()
+    {
+        $this->assertFalse($this->_validator->isValid('example@gmail.com.'));
+        $this->assertFalse($this->_validator->isValid('test@test.co.'));
+        $this->assertFalse($this->_validator->isValid('test@test.co.za.'));
+    }
 
     public function errorHandler($errno, $errstr)
     {