public ContactController::__construct(RendererInterface

public ContactFormInterface::setRecipients($recipients)

public MessageInterface::isPersonal()

List of recipient email addresses. Type:

public MailHandler::__construct(MailManagerInterface $mail_manager,

protected ContactFormEditForm::getEditableConfigNames()

public ContactFormInterface::setMessage($message)

The user entity storage handler. Type:

public MailHandlerInterface::sendMailMessages(MessageInterface

public MessageForm::validateForm(array &$form, FormStateInterface