From 7de5ae44385bd39eacb4d096722ead1647798a0a Mon Sep 17 00:00:00 2001
From: Milan van As <milan@hetwonen.nl>
Date: Wed, 25 Oct 2017 08:45:57 +0200
Subject: [PATCH] Force email domain lookups to work in fallback case.

---
 lib/Cake/Utility/Validation.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Cake/Utility/Validation.php b/lib/Cake/Utility/Validation.php
index f7d27cc9f..95a960ce0 100644
--- a/lib/Cake/Utility/Validation.php
+++ b/lib/Cake/Utility/Validation.php
@@ -478,7 +478,7 @@ class Validation {
 			if (function_exists('checkdnsrr') && checkdnsrr($regs[1], 'MX')) {
 				return true;
 			}
-			return is_array(gethostbynamel($regs[1]));
+			return is_array(gethostbynamel($regs[1] . '.'));
 		}
 		return false;
 	}