17.4. Using Different Transports
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## 17.4. Using Different Transports

In case you want to send different e-mails through different connections, you can also pass the transport object directly to `send()` without a prior call to `setDefaultTransport()`. The passed object will override the default transport for the actual `send()` request:

Example 17.4. Using Different Transports

    <?php
    require_once 'Zend/Mail.php';
    $mail = new Zend_Mail();
    // build message...
    require_once 'Zend/Mail/Transport/Smtp.php';
    $tr1 = new Zend_Mail_Transport_Smtp('server@example.com');
    $tr2 = new Zend_Mail_Transport_Smtp('other_server@example.com');
    $mail->send($tr1);
    $mail->send($tr2);
    $mail->send();  // use default again
    ?>

| Additional transports
Additional transports can be written by implementing `Zend_Mail_Transport_Interface`.

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