Laravel provides a clean API over the popular SwiftMailer library with drivers for SMTP, PHP's mail
, sendmail
and more. For this example, we'll be sending an email with SendGrid using the SMTP Driver. For more information, check out the docs for Laravel's Mail interface.
Laravel 5.5 LTS uses Mailable classes. Mailables in Laravel abstracts building emails with a mailable class. Mailables are responsible for collating data and passing them to views.
Check your .env
file and configure these variables:
MAIL_MAILER=smtp
# MAIL_DRIVER=smtp # for laravel < 7
MAIL_HOST=smtp.sendgrid.net
MAIL_PORT=587
MAIL_USERNAME=apikey
MAIL_PASSWORD=sendgrid_api_key
MAIL_ENCRYPTION=tls
MAIL_FROM_NAME="John Smith"
MAIL_FROM_ADDRESS=from@example.com
Categories and Unique Arguments will be stored as a “Not PII” field and may be used for counting or other operations as SendGrid runs its systems. These fields generally cannot be redacted or removed. You should take care not to place PII in this field. SendGrid does not treat this data as PII, and its value may be visible to SendGrid employees, stored long-term, and may continue to be stored after you’ve left SendGrid’s platform.
Next you need to create a Mailable class, Laravel's CLI tool called Artisan makes that a simple feat. Open CLI, go to the project directory and type:
php artisan make:mail TestEmail
This command will create a new file under app/Mail/TestEmail.php
and it should look something like this:
<?php
namespace App\Mail;
use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Contracts\Queue\ShouldQueue;
class TestEmail extends Mailable
{
use Queueable, SerializesModels;
public $data;
public function __construct($data)
{
$this->data = $data;
}
public function build()
{
$address = 'janeexampexample@example.com';
$subject = 'This is a demo!';
$name = 'Jane Doe';
return $this->view('emails.test')
->from($address, $name)
->cc($address, $name)
->bcc($address, $name)
->replyTo($address, $name)
->subject($subject)
->with([ 'test_message' => $this->data['message'] ]);
}
}
In Laravel Views
are used as 'templates' when sending an email. Let's create a file under app/resources/views/emails/test.blade.php
and insert this code:
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8" />
</head>
<body>
<h2>Test Email</h2>
<p>{{ $test_message }}</p>
</body>
</html>
Now that we have our Mailable Class created, all we need to do is run this code:
<?php
use App\Mail\TestEmail;
$data = ['message' => 'This is a test!'];
Mail::to('john@example.com')->send(new TestEmail($data));
Categories in SendGrid allow you to split your statistics into sections.
Another useful tool is event notifications. If you want to complete the feedback loop for your product you can pass identifiers as a header which relate to a record in your database which you can then parse the notifications against that record to track deliveries/opens/clicks/bounces.
The withSwiftMessage
method of the Mailable
base class allows you to register the callback that is invoked with the raw SwiftMailer message instance before sending the message. This knowledge allows you to customize the message before delivery. To customize your message, use something similar to this:
<?php
namespace App\Mail;
use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Contracts\Queue\ShouldQueue;
class TestEmail extends Mailable
{
use Queueable, SerializesModels;
public $data;
public function __construct($data)
{
$this->data = $data;
}
public function build()
{
$address = 'janeexampexample@example.com';
$subject = 'This is a demo!';
$name = 'Jane Doe';
$headerData = [
'category' => 'category',
'unique_args' => [
'variable_1' => 'abc'
]
];
$header = $this->asString($headerData);
$this->withSwiftMessage(function ($message) use ($header) {
$message->getHeaders()
->addTextHeader('X-SMTPAPI', $header);
});
return $this->view('emails.test')
->from($address, $name)
->cc($address, $name)
->bcc($address, $name)
->replyTo($address, $name)
->subject($subject)
->with([ 'data' => $this->data ]);
}
private function asJSON($data)
{
$json = json_encode($data);
$json = preg_replace('/(["\]}])([,:])(["\[{])/', '$1$2 $3', $json);
return $json;
}
private function asString($data)
{
$json = $this->asJSON($data);
return wordwrap($json, 76, "\n ");
}
}
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