diff --git a/js/sendMailTest.js b/js/sendMailTest.js
index ad2b16444..f46a6542d 100644
--- a/js/sendMailTest.js
+++ b/js/sendMailTest.js
@@ -24,7 +24,7 @@
 */
 
 //constant
-verifMailREGEX = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/;
+verifMailREGEX = /^([\w+-]+(?:\.[\w+-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/;
 
 function verifyMail(testMsg, testSubject)
 {