From 3bc55f6341a8bc7dfad07f36160251a5603532d0 Mon Sep 17 00:00:00 2001
From: Ionut-Mihai Burlacu <burlacu_ionut_mihai@yahoo.com>
Date: Thu, 21 Sep 2017 14:33:10 +0300
Subject: [PATCH] Fixes #11221

---
 lib/Cake/Network/Email/CakeEmail.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Cake/Network/Email/CakeEmail.php b/lib/Cake/Network/Email/CakeEmail.php
index 5946e31af3b..bb4b47f6586 100644
--- a/lib/Cake/Network/Email/CakeEmail.php
+++ b/lib/Cake/Network/Email/CakeEmail.php
@@ -70,7 +70,7 @@ class CakeEmail {
  *
  * @var string
  */
-	const EMAIL_PATTERN = '/^((?:[\p{L}0-9.!#$%&\'*+\/=?^_`{|}~-]+)*@[\p{L}0-9-.]+)$/ui';
+	const EMAIL_PATTERN = '/^((?:[\p{L}0-9.!#$%&\'*+\/=?^_`{|}~-]+)*@[\p{L}0-9-_.]+)$/ui';
 
 /**
  * Recipient of the email