Transports

Transports take care of the actual delivery of mail. Typically, you only need to worry about two possibilities: using PHP's native mail() functionality, which uses system resources to deliver mail, or using the SMTP protocol for delivering mail via a remote server. Zend Framework also includes a "File" transport, which creates a mail file for each message sent; these can later be introspected as logs or consumed for the purposes of sending via an alternate transport mechanism later.

The Zend\Mail\Transport interface defines exactly one method, send(). This method accepts a Zend\Mail\Message instance, which it then introspects and serializes in order to send.

Quick Start

Using a mail transport involves instantiating it, optionally configuring it, and then passing a message to it.

Sendmail Transport Usage

use Zend\Mail\Message;
use Zend\Mail\Transport\Sendmail as SendmailTransport;

$message = new Message();
$message->addTo('matthew@example.org');
$message->addFrom('ralph@example.org');
$message->setSubject('Greetings and Salutations!');
$message->setBody("Sorry, I'm going to be late today!");

$transport = new SendmailTransport();
$transport->send($message);

SMTP Transport Usage

Installation requirements

The SMTP transport depends on the zend-servicemanager component, so be sure to have it installed before getting started:

$ composer require zendframework/zend-servicemanager

use Zend\Mail\Message;
use Zend\Mail\Transport\Smtp as SmtpTransport;
use Zend\Mail\Transport\SmtpOptions;

$message = new Message();
$message->addTo('matthew@example.org');
$message->addFrom('ralph@example.org');
$message->setSubject('Greetings and Salutations!');
$message->setBody("Sorry, I'm going to be late today!");

// Setup SMTP transport using LOGIN authentication
$transport = new SmtpTransport();
$options   = new SmtpOptions([
    'name'              => 'localhost.localdomain',
    'host'              => '127.0.0.1',
    'connection_class'  => 'login',
    'connection_config' => [
        'username' => 'user',
        'password' => 'pass',
    ],
]);
$transport->setOptions($options);
$transport->send($message);

File Transport Usage

use Zend\Mail\Message;
use Zend\Mail\Transport\File as FileTransport;
use Zend\Mail\Transport\FileOptions;
use Zend\Math\Rand;

$message = new Message();
$message->addTo('matthew@example.org');
$message->addFrom('ralph@example.org');
$message->setSubject('Greetings and Salutations!');
$message->setBody("Sorry, I'm going to be late today!");

// Setup File transport
$transport = new FileTransport();
$options   = new FileOptions([
    'path'     => 'data/mail/',
    'callback' => function (FileTransport $transport) {
        return sprintf(
            'Message_%f_%s.txt',
            microtime(true),
            Rand::getString(8)
        );
    },
]);
$transport->setOptions($options);
$transport->send($message);

InMemory Transport Usage

use Zend\Mail\Message;
use Zend\Mail\Transport\InMemory as InMemoryTransport;

$message = new Message();
$message->addTo('matthew@example.org');
$message->addFrom('ralph@example.org');
$message->setSubject('Greetings and Salutations!');
$message->setBody("Sorry, I'm going to be late today!");

// Setup InMemory transport
$transport = new InMemoryTransport();
$transport->send($message);

// Verify the message:
$received = $transport->getLastMessage();

The InMemory transport is primarily of interest when in development or when testing.

Migration from 2.0-2.3 to 2.4+

Version 2.4 adds support for PHP 7. In PHP 7, null is a reserved keyword, which required renaming the Null transport. If you were using the Null transport directly previously, you will now receive an E_USER_DEPRECATED notice on instantiation. Please update your code to refer to the InMemory class instead.

Users pulling their Null transport instance from the transport factory (Zend\Mail\Transport\Factory) receive an InMemory instance instead starting in 2.4.0.

Configuration Options

Configuration options are per transport. Please follow the links below for transport-specific options.

• SMTP Transport Options
• File Transport Options

Available Methods

send

send(Zend\Mail\Message $message) : void

Send a mail message.