How to send mail to admin after customer signup front-side in Magento 2?

By default in Magento 2 does not provide the mail functionality to admin when new customers signup. It means no email will be sent to the admin when a customer registers with the front side.

If you want to get the mail sent to admin when new customer signup happens then do follow below steps:

Step 1: Create a registration file like

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Magemonkey_MailtoAdmin',
    __DIR__
);

<?php

\Magento\Framework\Component\ComponentRegistrar::register(

\Magento\Framework\Component\ComponentRegistrar::MODULE,

'Magemonkey_MailtoAdmin',

__DIR__

);

Step 2: Create event file like

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="customer_register_success">
        <observer name="sendmail_toadmin" instance="Magemonkey\MailtoAdmin\Observer\MailtoAdmin"/>
    </event>
</config>

<?xml version="1.0"?>

</event>

</config>

Step 3: Create module file like Magemonkey/MailtoAdmin/etc/module.xml

<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Magemonkey_MailtoAdmin" setup_version="1.0.0"/>
</config>

<?xml version="1.0" ?>

</config>

Step 4: Create PHP file in Magemonkey/MailtoAdmin/Observer/MailtoAdmin.php

<?php
 
namespace Magemonkey\MailtoAdmin\Custom\Observer;

use Magento\Framework\Event\ObserverInterface;
 
class MailtoAdmin implements ObserverInterface
{
 
    const XML_PATH_EMAIL_RECIPIENT = 'trans_email/ident_general/email';
    protected $_transportBuilder;
    protected $inlineTranslation;
    protected $scopeConfig;
    protected $storeManager;
     protected $_escaper;
    
    public function __construct(
        \Magento\Framework\Mail\Template\TransportBuilder $transportBuilder,
        \Magento\Framework\Translate\Inline\StateInterface $inlineTranslation,
        \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
        \Magento\Store\Model\StoreManagerInterface $storeManager,
        \Magento\Framework\Escaper $escaper
    ) {
        $this->_transportBuilder = $transportBuilder;
        $this->inlineTranslation = $inlineTranslation;
        $this->scopeConfig = $scopeConfig;
        $this->storeManager = $storeManager;
        $this->_escaper = $escaper;
    }
 
    public function execute(\Magento\Framework\Event\Observer $observer)
    {
        
        
        $customer = $observer->getData('customer');
        
        $this->inlineTranslation->suspend();
        try
        {
            $error = false;
            
            $sender = [
                'name' => $this->_escaper->escapeHtml($customer->getFirstName()),
                'email' => $this->_escaper->escapeHtml($customer->getEmail()),
            ];
            $postObject = new \Magento\Framework\DataObject();
            $postObject->setData($sender);
            $storeScope = \Magento\Store\Model\ScopeInterface::SCOPE_STORE;
            $transport =
                $this->_transportBuilder
                ->setTemplateIdentifier('1')
                ->setTemplateOptions(
                    ['area' => \Magento\Framework\App\Area::AREA_FRONTEND, 
                    'store' => \Magento\Store\Model\Store::DEFAULT_STORE_ID,]
                )
                ->setTemplateVars(['data' => $postObject])
                ->setFrom($sender)
                ->addTo($this->scopeConfig->getValue(self::XML_PATH_EMAIL_RECIPIENT, $storeScope))
                ->getTransport();
            $transport->sendMessage(); ;
            $this->inlineTranslation->resume();
            
            
        }
        catch (\Exception $e)
        {
            \Magento\Framework\App\ObjectManager::getInstance()->get('Psr\Log\LoggerInterface')->debug($e->getMessage());
        }
    
    }
 
}

<?php

namespace Magemonkey\MailtoAdmin\Custom\Observer;

use Magento\Framework\Event\ObserverInterface;

class MailtoAdmin implements ObserverInterface

{

const XML_PATH_EMAIL_RECIPIENT = 'trans_email/ident_general/email';

protected $_transportBuilder;

protected $inlineTranslation;

protected $scopeConfig;

protected $storeManager;

protected $_escaper;

public function __construct(

\Magento\Framework\Mail\Template\TransportBuilder $transportBuilder,

\Magento\Framework\Translate\Inline\StateInterface $inlineTranslation,

\Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,

\Magento\Store\Model\StoreManagerInterface $storeManager,

\Magento\Framework\Escaper $escaper

) {

$this->_transportBuilder = $transportBuilder;

$this->inlineTranslation = $inlineTranslation;

$this->scopeConfig = $scopeConfig;

$this->storeManager = $storeManager;

$this->_escaper = $escaper;

}

public function execute(\Magento\Framework\Event\Observer $observer)

{

$customer = $observer->getData('customer');

$this->inlineTranslation->suspend();

try

{

$error = false;

$sender = [

'name' => $this->_escaper->escapeHtml($customer->getFirstName()),

'email' => $this->_escaper->escapeHtml($customer->getEmail()),

];

$postObject = new \Magento\Framework\DataObject();

$postObject->setData($sender);

$storeScope = \Magento\Store\Model\ScopeInterface::SCOPE_STORE;

$transport =

$this->_transportBuilder

->setTemplateIdentifier('1')

->setTemplateOptions(

['area' => \Magento\Framework\App\Area::AREA_FRONTEND,

'store' => \Magento\Store\Model\Store::DEFAULT_STORE_ID,]

)

->setTemplateVars(['data' => $postObject])

->setFrom($sender)

->addTo($this->scopeConfig->getValue(self::XML_PATH_EMAIL_RECIPIENT, $storeScope))

->getTransport();

$transport->sendMessage(); ;

$this->inlineTranslation->resume();

}

catch (\Exception $e)

{

\Magento\Framework\App\ObjectManager::getInstance()->get('Psr\Log\LoggerInterface')->debug($e->getMessage());

}

Step 5: Then after run the below commands.

php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy
php bin/magento cache:flush

php bin/magento setup:upgrade

php bin/magento setup:static-content:deploy

php bin/magento cache:flush

That’s it…

Now clean the cache and check it by creating new customer signup. You will find the mail of new customer’s sign up.

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