diff --git a/EmailValidator/Validation/DNSCheckValidation.php b/EmailValidator/Validation/DNSCheckValidation.php
index 2f3a237..ecca1dd 100644
--- a/EmailValidator/Validation/DNSCheckValidation.php
+++ b/EmailValidator/Validation/DNSCheckValidation.php
@@ -44,6 +44,8 @@ public function getWarnings()
 
     protected function checkDNS($host)
     {
+        $host = rtrim($host, '.') . '.';
+
         $Aresult = true;
         $MXresult = checkdnsrr($host, 'MX');