def initialize_required_metadata(self, mail): mail_metadata = IDocumentMetadata(mail) date_time = datetime.fromtimestamp( utils.get_date_header(mail.msg, 'Date')) mail_metadata.document_date = date_time.date() # Receipt date should be None for migrated mails mail_metadata.receipt_date = None mail_metadata.document_author = get_author_by_email(mail)