Ggtkuk

I want to override default contact form Model file (ie, Mail.php and mailinterface.php) in Magento 2.

Struggling to override this file since the last 2days.

Any help would be appreciated.

/var/www/html/magento/app/code/Amy/Contactform/Model/Mail.php

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace AmyContactformModel;

use MagentoFrameworkMailTemplateTransportBuilder;
use MagentoFrameworkTranslateInlineStateInterface;
use MagentoStoreModelStoreManagerInterface;
use MagentoFrameworkAppObjectManager;
use MagentoFrameworkAppArea;

class Mail extends MailInterface
null $storeManager
 */
 public function __construct(
 ConfigInterface $contactsConfig,
 TransportBuilder $transportBuilder,
 StateInterface $inlineTranslation,
 StoreManagerInterface $storeManager = null
 ) 
 $this->contactsConfig = $contactsConfig;
 $this->transportBuilder = $transportBuilder;
 $this->inlineTranslation = $inlineTranslation;
 $this->storeManager = $storeManager ?: ObjectManager::getInstance()->get(StoreManagerInterface::class);
 

 /**
 * Send email from contact form
 *
 * @param string $replyTo
 * @param array $variables
 * @return void
 */
 public function send($recipient, $replyTo, array $variables)

 /** @see MagentoContactControllerIndexPost::validatedParams() */
 $replyToName = !empty($variables['data']['name']) ? $variables['data']['name'] : null;
 if ($recipient == 'General feedback')
 $emails = ['aaa@gmail.com']; // add your email list
 else if ($recipient == 'Warranty')
 $emails = ['bbb@gmail.com']; // add your email list 
 

 $this->inlineTranslation->suspend();
 try 
 $transport = $this->transportBuilder
 ->setTemplateIdentifier($this->contactsConfig->emailTemplate())
 ->setTemplateOptions(
 [
 'area' => Area::AREA_FRONTEND,
 'store' => $this->storeManager->getStore()->getId()
 ]
 )
 ->setTemplateVars($variables)
 ->setFrom($this->contactsConfig->emailSender())
 ->addTo($emails)
 ->setReplyTo($replyTo, $replyToName)
 ->getTransport();

 $transport->sendMessage();
 finally 
 $this->inlineTranslation->resume();
 

/var/www/html/magento/app/code/Amy/Contactform/Model/Mail1Interface.php

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace AmyContactformModel;

/**
 * Email from contact form
 *
 * @api
 * @since 100.2.0
 */
interface Mail1Interface extends MialInterface

 /**
 * Send email from contact form
 *
 * @param string $replyTo Reply-to email address
 * @param array $variables Email template variables
 * @return void
 * @since 100.2.0
 */
 public function send($recipient, $replyTo, array $variables);

/var/www/html/magento/app/code/Amy/Contactform/Controller/Index/Post.php

<?php
/**
 *
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace AmyContactformControllerIndex;

use MagentoContactModelConfigInterface;
use MagentoContactModelMailInterface;
use MagentoFrameworkAppActionContext;
use MagentoFrameworkAppRequestDataPersistorInterface;
use MagentoFrameworkControllerResultRedirect;
use MagentoFrameworkExceptionLocalizedException;
use MagentoFrameworkHTTPPhpEnvironmentRequest;
use PsrLogLoggerInterface;
use MagentoFrameworkAppObjectManager;
use MagentoFrameworkDataObject;

class Post extends MagentoContactControllerIndexPost

 /**
 * @var DataPersistorInterface
 */
 private $dataPersistor;

 /**
 * @var Context
 */
 private $context;

 /**
 * @var MailInterface
 */
 private $mail;

 /**
 * @var LoggerInterface
 */
 private $logger;

 /**
 * @param Context $context
 * @param ConfigInterface $contactsConfig
 * @param MailInterface $mail
 * @param DataPersistorInterface $dataPersistor
 * @param LoggerInterface $logger
 */
 public function __construct(
 Context $context,
 ConfigInterface $contactsConfig,
 MailInterface $mail,
 DataPersistorInterface $dataPersistor,
 LoggerInterface $logger = null
 ) 
 parent::__construct($context, $contactsConfig, $mail, $dataPersistor);
 $this->context = $context;
 $this->mail = $mail;
 $this->dataPersistor = $dataPersistor;
 $this->logger = $logger ?: ObjectManager::getInstance()->get(LoggerInterface::class);
 

 /**
 * Post user question
 *
 * @return Redirect
 */
 public function execute()
 
 if (!$this->isPostRequest()) 
 return $this->resultRedirectFactory->create()->setPath('*/*/');
 
 try 
 $this->sendEmail($this->validatedParams());
 $this->messageManager->addSuccessMessage(
 __('Thanks for contacting us. Your inquiry was submitted and will be responded to you as soon as possible.')
 );
 $this->dataPersistor->clear('contact_us');
 catch (LocalizedException $e) 
 $this->messageManager->addErrorMessage($e->getMessage());
 $this->dataPersistor->set('contact_us', $this->getRequest()->getParams());
 catch (Exception $e) 
 $this->logger->critical($e);
 $this->messageManager->addErrorMessage(
 __('An error occurred while processing your form. Please try again later.')
 );
 $this->dataPersistor->set('contact_us', $this->getRequest()->getParams());
 
 return $this->resultRedirectFactory->create()->setPath('contact/index');
 

 /**
 * @param array $post Post data from contact form
 * @return void
 */
 private function sendEmail($post)
 
 $this->mail->send(
 $post['subject'],
 $post['email'],
 ['data' => new DataObject($post)]
 );
 

 /**
 * @return bool
 */
 private function isPostRequest()
 
 /** @var Request $request */
 $request = $this->getRequest();
 return !empty($request->getPostValue());
 

 /**
 * @return array
 * @throws Exception
 */
 private function validatedParams()
 
 $request = $this->getRequest();
 if (trim($request->getParam('name')) === '') 
 throw new LocalizedException(__('Name is missing'));
 
 if (trim($request->getParam('lastname')) === '') 
 throw new LocalizedException(__('LastName is missing'));
 
 if (trim($request->getParam('address1')) === '') 
 throw new LocalizedException(__('Address1 is missing'));
 
 if (trim($request->getParam('address2')) === '') 
 throw new LocalizedException(__('Address2 is missing'));
 
 if (trim($request->getParam('city')) === '') 
 throw new LocalizedException(__('City is missing'));
 
 if (trim($request->getParam('stateprovince')) === '') 
 throw new LocalizedException(__('State is missing'));
 
 if (trim($request->getParam('zipcode')) === '') 
 throw new LocalizedException(__('Zipcode is missing'));
 
 if (trim($request->getParam('subject')) === '') 
 throw new LocalizedException(__('Subject is missing'));
 
 if (trim($request->getParam('comment')) === '') 
 throw new LocalizedException(__('Comment is missing'));
 

 if (false === strpos($request->getParam('email'), '@')) 
 throw new LocalizedException(__('Invalid email address'));
 
 if (trim($request->getParam('hideit')) !== '') 
 throw new Exception();
 

 return $request->getParams();
 

/var/www/html/magento/app/code/Amy/Contactform/etc/di.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
 <preference for="MagentoContactBlockContactForm" type="AmyContactformBlockContactForm" />
 <preference for="MagentoContactControllerIndexPost" type="AmyContactformControllerIndexPost" />
 <preference for="MagentoContactModelMail" type="AmyContactformModelMail" />
</config>

Have you tried the preference as below :

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
 <preference for="MagentoContactModelMail" type="VendorNameModuleNameModelMail" />
</config>

After struggling for days, I got the solution
This is how you will be able to override the contact Model Mail.php file,
I posted this answer, because it may be useful to others.

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace AmyContactformModel;

use MagentoFrameworkMailTemplateTransportBuilder;
use MagentoFrameworkTranslateInlineStateInterface;
use MagentoStoreModelStoreManagerInterface;
use MagentoFrameworkAppObjectManager;
use MagentoFrameworkAppArea;
use MagentoContactModelConfigInterface;

class Mail extends MagentoContactModelMail implements MagentoContactModelMailInterface
null $storeManager
 */
 public function __construct(
 ConfigInterface $contactsConfig,
 TransportBuilder $transportBuilder,
 StateInterface $inlineTranslation,
 StoreManagerInterface $storeManager = null
 ) 
 $this->contactsConfig = $contactsConfig;
 $this->transportBuilder = $transportBuilder;
 $this->inlineTranslation = $inlineTranslation;
 $this->storeManager = $storeManager ?: ObjectManager::getInstance()->get(StoreManagerInterface::class);
 

 /**
 * Send email from contact form
 *
 * @param string $replyTo
 * @param array $variables
 * @return void
 */
 public function send($recipient, $replyTo, array $variables)

 /** @see MagentoContactControllerIndexPost::validatedParams() */
 $replyToName = !empty($variables['data']['name']) ? $variables['data']['name'] : null;
 if ($recipient == 'General feedback')
 $emails = ['aaa@gmail.com']; // add your email list
 else if ($recipient == 'Warranty')
 $emails = ['bbb@gmail.com']; // add your email list 
 

 $this->inlineTranslation->suspend();
 try 
 $transport = $this->transportBuilder
 ->setTemplateIdentifier($this->contactsConfig->emailTemplate())
 ->setTemplateOptions(
 [
 'area' => Area::AREA_FRONTEND,
 'store' => $this->storeManager->getStore()->getId()
 ]
 )
 ->setTemplateVars($variables)
 ->setFrom($this->contactsConfig->emailSender())
 ->addTo($emails)
 ->setReplyTo($replyTo, $replyToName)
 ->getTransport();

 $transport->sendMessage();
 finally 
 $this->inlineTranslation->resume();
 

Mailinterface.php model is an interface class and we can't directly override magento's core interfaces. You can override Mail.php using preference like :

<preference for="MagentoContactModelMail" type="NamespaceModulenameModelMailOverride"/>

Thanks