diff --git a/src/Egulias/EmailValidator/EmailValidator.php b/src/Egulias/EmailValidator/EmailValidator.php
index 80e6227..a3bc1d9 100644
--- a/src/Egulias/EmailValidator/EmailValidator.php
+++ b/src/Egulias/EmailValidator/EmailValidator.php
@@ -84,7 +84,7 @@ public function isValid($email, $checkDNS = false, $strict = false)
             return false;
         }
 
-        $dns = true;
+        $dns = false;
         if ($checkDNS) {
             $dns = $this->checkDNS();
         }
@@ -95,7 +95,12 @@ public function isValid($email, $checkDNS = false, $strict = false)
             return false;
         }
 
-        return ($strict) ? (!$this->hasWarnings() && $dns) : true;
+        return ($strict) ? $this->checkStrict($dns) : true;
+    }
+
+    private function checkStrict($dns)
+    {
+         return !($this->hasWarnings() && !$dns);
     }
 
     /**
@@ -144,16 +149,9 @@ public function getThreshold()
 
     protected function checkDNS()
     {
-        $checked = false;
-        if (!function_exists('dns_get_record') && (
-            in_array(self::DNSWARN_NO_RECORD, $this->warnings) &&
-            in_array(self::DNSWARN_NO_MX_RECORD, $this->warnings)
-        )) {
-            return $checked;
-        }
+        $checked = true;
 
         $result = checkdnsrr(trim($this->parser->getParsedDomainPart()), 'MX');
-        $checked = true;
 
         if (!$result) {
             $this->warnings[] = self::DNSWARN_NO_RECORD;
diff --git a/tests/egulias/Tests/EmailValidator/EmailValidatorTest.php b/tests/egulias/Tests/EmailValidator/EmailValidatorTest.php
index 0831806..e9e3a6e 100644
--- a/tests/egulias/Tests/EmailValidator/EmailValidatorTest.php
+++ b/tests/egulias/Tests/EmailValidator/EmailValidatorTest.php
@@ -303,4 +303,14 @@ public function getInvalidEmailsWithWarnings()
             ),
         );
     }
+
+    public function testInvalidEmailsWithDNSAndStrict()
+    {
+        $this->assertFalse($this->validator->isValid('test@test', true, true));
+    }
+
+    public function testInvalidEmailsWithStrict()
+    {
+        $this->assertFalse($this->validator->isValid('"test"@test', false, true));
+    }
 }