How To Change Email Subject in Laravel 10?

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With this step-by-step instruction on modifying email subjects in Laravel 10, you can navigate the world of email customisation. Personalization is important in the realm of digital communication, and being able to customise the subject lines of your emails directly from your application can boost engagement and make your communications stand out.

Emails are an essential part of web applications, and Laravel provides a straightforward way to send emails with the built-in mail function. However, there may be cases where you need to modify the email subject line to make it more informative or personalized.

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In this detailed article, we’ll walk you through the process of customising email subjects in Laravel 10, ensuring that your correspondence is received well. We’ll help you through each step to get a professional and personalised finish, from creating email templates to dynamically changing subject lines.

Let’s get started.

Laravel Installation

Open terminal and run this command to create a laravel project.

composer create-project laravel/laravel myblog

It will create a project folder with name myblog inside your local system.

To start the development server of laravel –

php artisan serve

URL: http://127.0.0.1:8000

Assuming laravel already installed inside your system.

How Do I Configure A Google App Password?

Google App Password is a 16-digit alphanumeric number that allows you to sign in to your Google Account from apps that do not support two-factor authentication.

If you enable app password, you will never have to reveal your primary account password again. App Passwords are only available to accounts with 2-Step Verification enabled.

Here’s how to create an app password so you can send and receive emails on your server.

Step #1 Login to Google Account

Go to myaccount.google.com (if not signed in, you will be asked to sign-in to your account)

Step #2 Enable 2-Step Verification

Before you can set up the app password, you must first enable 2-Step Verification on your account.

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To proceed to the Security page, click on the Security tab on the left-hand side and then on 2-Step Verification under the section Signing in to Google.

Click on Get Started and on the next page enter your password to verify your account and hit Next

You must now configure your phone.

Enter the phone number you want to use for verification, then choose how you want to get your code. It might be a text or a phone call. I’ll keep it as a text message and press Next.

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Google will give you a verification code through text message. Enter the verification code and then click Next.

Google will confirm that 2-Step Verification is enabled on the next page.

To return to the Security page, click the back arrow next to the header.

Step #3 Setup Application password

Within the section Signing in to Google, you will notice a new option that says App passwords.

In case, if you are not able to see this App password there. Click on 2-Step Verification.

Verify your account by clicking on App passwords. You will be able to create app passwords for any app and device after verification.

Select Mail from the Select app and Other (custom name) from the Select device, and then give it a name. You can call it whatever you want; I’ll call it PHPMailer and click Generate.

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You have now successfully created your app password. Copy and paste this code somewhere safe until you’ve added it to the PHP script.

Keep your email address and app password for SMTP configuration.

How To Configure SMTP in Laravel?

To configure SMTP details, open up the file .env from application root.

We will pass mail driver as gmail server, mail host, mail port, mail username, mail password.

//..

MAIL_MAILER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
MAIL_USERNAME="your_username@gmail.com"
MAIL_PASSWORD="your_app_password"
MAIL_ENCRYPTION=null
MAIL_FROM_ADDRESS="your_email_address@gmail.com"
MAIL_FROM_NAME="Online Web Tutor Support"

//...

Setup Laravel Mailable Class

We will create mail class via artisan command which will be responsible for sending emails.

$ php artisan make:mail MyTestMail

Application will create a folder with the name of Mail inside /app folder. You should see a file MyTestMail.php inside /app/Mail folder.

Open file MyTestMail.php and write this code into it.

<?php

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Mail\Mailables\Content;
use Illuminate\Mail\Mailables\Envelope;
use Illuminate\Queue\SerializesModels;

class MyTestMail extends Mailable
{
    use Queueable, SerializesModels;

    public array $details;

    /**
     * Create a new message instance.
     */
    public function __construct($details)
    {
        $this->details = $details;
    }

    /**
     * Get the message envelope.
     */
    public function envelope(): Envelope
    {
        return new Envelope(
            subject: 'New Article Published in Laravel',
        );
    }

    /**
     * Get the message content definition.
     */
    public function content(): Content
    {
        return new Content(
            view: 'emails.custom_template',
        );
    }

    /**
     * Get the attachments for the message.
     *
     * @return array<int, \Illuminate\Mail\Mailables\Attachment>
     */
    public function attachments(): array
    {
        return [];
    }
}

Concept

Inside laravel mailable class you see a method of envelope() where you can put your custom email subjects,

return new Envelope(
      subject: 'New Article Published in Laravel',
 );

Create Mail Template

Next, we need to setup an email template.

Let’s create a folder emails inside /resources/views folder. Inside this folder we will create a simple blade template file with following content.

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Create a fie custom_template.blade.php inside /resources/views/emails folder. Open file and write this code into it.

<!DOCTYPE html>
<html>

<head>
    <title>Mail From Online Web Tutor</title>
</head>
<body>
    <p>Hello!,</p> 
    <p>Greetings!!!</p>
    <p>Hope you are doing good.</p>
    <p>{{ $details['title'] }}</p>
    <p>{{ $details['body'] }}</p>

    <p>Thank you</p>
</body>

</html>
  

Add Route

Open web.php file from /routes folder. Add this route and code into it.

//...
use Illuminate\Support\Facades\Mail;
use App\Mail\MyTestMail;

//...

Route::get('send-mail', function () {

    $details = [
      'title' => 'Online Web Tutor Support Mail',
      'body' => 'This is a notification mail from support.'
    ];
  
    Mail::to("send_to_email@gmail.com")->send(new MyTestMail($details));
    
    dd("Email is Sent, please check your inbox.");
});

Application Testing

Run this command into project terminal to start development server,

php artisan serve

URL: http://127.0.0.1:8000/send-mail

We hope this article helped you to learn about Step-by-Step Guide to Change Email Subject in Laravel 10 Tutorial in a very detailed way.

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