comments are not allowed in IDLeft for message-id

src/MessageIDParser.php

@@ -5,7 +5,7 @@ namespace Egulias\EmailValidator;
 use Egulias\EmailValidator\Parser;
 use Egulias\EmailValidator\EmailLexer;
 use Egulias\EmailValidator\Result\Result;
-use Egulias\EmailValidator\Parser\LocalPart;
+use Egulias\EmailValidator\Parser\IDLeftPart;
 use Egulias\EmailValidator\Parser\IDRightPart;
 use Egulias\EmailValidator\Result\ValidEmail;
 use Egulias\EmailValidator\Result\InvalidEmail;
@@ -61,7 +61,7 @@ class MessageIDParser extends Parser
 
     private function processIDLeft() : Result
     {
-        $localPartParser = new LocalPart($this->lexer);
+        $localPartParser = new IDLeftPart($this->lexer);
         $localPartResult = $localPartParser->parse();
         $this->idLeft = $localPartParser->localPart();
         $this->warnings = array_merge($localPartParser->getWarnings(), $this->warnings);

src/Parser/DomainPart.php

@@ -133,14 +133,6 @@ class DomainPart extends PartParser
         return new ValidEmail();
     }
 
-    /**
-     * @return string
-     */
-    public function getDomainPart()
-    {
-        return $this->domainPart;
-    }
-
     protected function parseComments(): Result
     {
         $commentParser = new Comment($this->lexer, new DomainComment());

src/Parser/IDLeftPart.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Egulias\EmailValidator\Parser;
+
+use Egulias\EmailValidator\Result\Result;
+use Egulias\EmailValidator\Parser\LocalPart;
+use Egulias\EmailValidator\Result\InvalidEmail;
+use Egulias\EmailValidator\Result\Reason\CommentsInIDRight;
+
+class IDLeftPart extends LocalPart
+{
+    protected function parseComments(): Result
+    {
+       return new InvalidEmail(new CommentsInIDRight(), $this->lexer->token['value']);
+    }
+}

src/Parser/LocalPart.php

@@ -133,7 +133,7 @@ class LocalPart extends PartParser
         return $parseAgain;
     }
 
-    private function parseComments(): Result
+    protected function parseComments(): Result
     {
         $commentParser = new Comment($this->lexer, new LocalComment());
         $result = $commentParser->parse();

src/Result/Reason/CommentsInIDRight.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Egulias\EmailValidator\Result\Reason;
+
+class CommentsInIDRight implements Reason
+{
+    public function code() : int
+    {
+        return 400;
+    }
+
+    public function description() : string
+    {
+        return 'Comments are not allowed in IDRight for message-id';
+    }
+}

tests/EmailValidator/Validation/MessageIDValidationTest.php

@@ -45,6 +45,20 @@ class MessageIDValidationTest extends TestCase
             ['example@with space'],
             ['example@iana.'],
             ['example@ia\na.'],
+            /**
+             * RFC 2822, section 3.6.4, Page 25
+             * Since the msg-id has
+             * a similar syntax to angle-addr (identical except that comments and
+             * folding white space are not allowed), a good method is to put the
+             * domain name (or a domain literal IP address) of the host on which the
+             * message identifier was created on the right hand side of the "@", and
+             * put a combination of the current absolute date and time along with
+             * some other currently unique (perhaps sequential) identifier available
+             * on the system (for example, a process id number) on the left hand
+             * side.
+             */
+            ['example(comment)@example.com'],
+            ["\r\nFWS@example.com"]
         ];
     }