Magento – Magento 2: New order mail notification to admin

You need to use event observer. when payment captured status will be change. so you can write code in observer when status become paid(this just example) you will send email.

its depend on module some module give its inbuilt that you can set when to send email to customer. when order placed or when payment received.

hope it will help

The issue has been fix by IWD support and its working, they have just change 1 file.

Changed file

app/code/community/IWD/OrderManager/Model/Notify/Notification.php

They have commented the below code in getEmails() function.

check below updated getEmails() function with commented code

protected function getEmails()
    {
//        $store_id = $this->order->getStore()->getId();
//        $data = $this->email . "," . Mage::getStoreConfig(self::XML_PATH_EMAIL_COPY_TO, $store_id);
//        if (!empty($data) && strlen($data)>5) {
//            return explode(',', $data);
//        }  // Code commented by Iwd support

        $email = $this->order->getCustomerEmail();
        return array($email);
    }