Xpressengine\User\UserHandler::deleteEmail PHP Method

    public function deleteEmail(EmailInterface $email)
    {
        if ($email->isConfirmed()) {
            return $this->emails()->delete($email);
        } else {
            return $this->pendingEmails()->delete($email);
        }
    }

 /**
  * delete email
  *
  * @param Request $request
  *
  * @return \Xpressengine\Presenter\RendererInterface
  * @throws Exception
  */
 public function deleteMail(Request $request)
 {
     $address = $request->get('address');
     // 해당회원이 가진 이메일을 찾는다.
     $selected = null;
     $pendingEmail = $this->user->getPendingEmail();
     if ($pendingEmail !== null && $pendingEmail->getAddress() === $address) {
         $selected = $pendingEmail;
     } else {
         foreach ($this->user->emails as $mail) {
             if ($mail->address === $address) {
                 $selected = $mail;
                 break;
             }
         }
     }
     // 해당회원이 가진 이메일이 아닐 경우 예외처리한다.
     if ($selected === null) {
         $e = new InvalidArgumentException();
         $e->setMessage('존재하지 않는 이메일입니다.');
         throw $e;
     }
     XeDB::beginTransaction();
     try {
         $this->handler->deleteEmail($selected);
     } catch (\Exception $e) {
         XeDB::rollback();
         throw $e;
     }
     XeDB::commit();
     return XePresenter::makeApi(['message' => '삭제되었습니다.']);
 }