public MailHandler::__construct(MailManagerInterface $mail_manager,

public ContactForm::setReply($reply)

contact_form_user_admin_settings_submit($form, FormStateInterface $form_state) Form submission handler for

Enables the use of personal and site-wide contact forms. File core/modules/contact/contact.module

public ContactFormInterface::setMessage($message)

The user entity storage handler. Type:

public ContactFormListBuilder::buildHeader()

The date formatter service. Type:

protected ContactFormEditForm::getEditableConfigNames()

List of recipient email addresses. Type: