You are correct:

  >>> from django.core.validators import EmailValidator
  >>> EmailValidator()(""""()<>[]:,;@\\\"!#$%&'-/=?^_`{}| ~.a"(is)@(valid)example.org(honest)""")
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
    File "/usr/local/lib/python2.7/dist-packages/django/core/validators.py", line 203, in __call__
      raise ValidationError(self.message, code=self.code)
  django.core.exceptions.ValidationError