fix #217 (#266)

src/Parser/DomainPart.php

@@ -198,6 +198,9 @@ class DomainPart extends Parser
 
             $domain .= $this->lexer->token['value'];
             $this->lexer->moveNext();
+            if ($this->lexer->token['type'] === EmailLexer::S_SP) {
+                throw new CharNotAllowed();
+            }
         } while (null !== $this->lexer->token['type']);
 
         return $domain;

tests/EmailValidator/Validation/RFCValidationTest.php

@@ -167,6 +167,7 @@ class RFCValidationTest extends TestCase
             ['test@email<'],
             ['test@email{'],
             ['test@ '],
+            ['test@example.com []'],
         ];
     }