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SendGrid

This transport layer forms the coupling between Zend\Mail and the Email Service Provider SendGrid. The transport is a drop-in component and can be used to send email messages including Cc & Bcc addresses and attachments.

Installation

It is assumed this module is already installed and enabled in your Zend Framework 2 project. If not, please read first the installation instructions to do so.

Copy the ./vendor/juriansluiman/slm-mail/config/slm_mail.send_grid.local.php.dist to your ./config/autoload folder (don't forget to remove the .dist extension!) and update your API key.

Usage

Supported functionalities

SlmMail consumes for SendGrid just the standard Zend\Mail\Message object.

Attachments

You can add any attachment to a SendGrid message. Attachments are handled just like you normally send emails with attachments. See the Zend Framework 2 manual for an extensive explanation of the Message class.

$text = new \Zend\Mime\Part($textContent);
$text->type = "text/plain";

$html = new \Zend\Mime\Part($htmlMarkup);
$html->type = "text/html";

$pdf = new \Zend\Mime\Part(fopen($pathToPdf, 'r'));
$pdf->type     = "application/pdf";
$pdf->filename = "my-attachment.pdf";

$body = new \Zend\Mime\Message;
$body->setParts(array($text, $html, $pdf));

$message = new \Zend\Mail\Message;
$message->setBody($body);

Use service locator

If you have access to the service locator, you can retrieve the SendGrid transport:

// As stated above, you can also create a specialized SendGrid message for more features
$message = new \Zend\Mail\Message();

// set up Message here

$transport = $locator->get('SlmMail\Mail\Transport\SendGridTransport');
$transport->send($message);

Of course, you are encouraged to inject this transport object whenever you need to send an email.

Advanced usage

The transport layer depends on a service class SlmMail\Service\SendGridService which sends the requests to the SendGrid server. However, this service implements also the api so you can immediately check the state of the sent email and act upon a bounced message.

The service class is injected into the SlmMail\Mail\Transport\HttpTransport but you can get the service class yourself too:

$sendgridService = $locator->get('SlmMail\Service\SendGridService');
$bounce          = $sendgrid->getStatistics(); // Example

The complete list of methods is:

  • send(Message $message): used by transport layer, $message instance of Zend\Mail\Message (docs)
  • getStatistics($date, $startDate, $endDate, $aggregate): get statistics of your account (docs)
  • getBounces($date, $days, $startDate, $endDate, $email, $limit, $offset): get the list of bounces (docs)
  • deleteBounces($startDate, $endDate, $email): delete an address from the bounce list (docs)
  • countBounces($startDate, $endDate): count the number of bounces (docs)
  • getSpamReports($date, $days, $startDate, $endDate, $email, $limit, $offset): get entries from the spam report list (docs)
  • deleteSpamReport($email): delete an address from the spam report list (docs)
  • getBlocks($date, $days, $startDate, $endDate): get the list of blocks (docs)
  • deleteBlock($email): delete an address from the blocks list (docs)

Error handling

If an error occurs when a request is made to the SendGrid API using SlmMail\Service\SendGridService, some exceptions are thrown. Each exception implements the SlmMail\Exception\ExceptionInterface, so you can easily filter each SlmMail exceptions.

SendGrid error handling is rather poor, therefore only one, generic exception is thrown for each error:

  • SlmMail\Service\Exception\RuntimeException: this exception is thrown for other exceptions.

You can get the exact message and error code the following way:

catch (\SlmMail\Service\Exception\RuntimeException $e) {
    $message = $e->getMessage();
    $code    = $e->getCode();
}
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