repo_zf1/documentation/manual/en/module_specs/Zend_Mail-MultipleEmails.xml

<?xml version="1.0" encoding="UTF-8"?>
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<sect1 id="zend.mail.multiple-emails">
    <title>Sending Multiple Mails per SMTP Connection</title>

    <para>
        By default, a single SMTP transport creates a single connection and
        re-uses it for the lifetime of the script execution. You may send multiple
        e-mails through this SMTP connection. A RSET command is issued before each
        delivery to ensure the correct SMTP handshake is followed.
    </para>

    <example id="zend.mail.multiple-emails.example-1">

        <title>Sending Multiple Mails per SMTP Connection</title>

        <programlisting language="php"><![CDATA[
// Create transport
$config = array('name' => 'sender.example.com');
$transport = new Zend_Mail_Transport_Smtp('mail.example.com', $config);

// Loop through messages
for ($i = 0; $i < 5; $i++) {
    $mail = new Zend_Mail();
    $mail->addTo('studio@peptolab.com', 'Test');
    $mail->setFrom('studio@peptolab.com', 'Test');
    $mail->setSubject(
        'Demonstration - Sending Multiple Mails per SMTP Connection'
    );
    $mail->setBodyText('...Your message here...');
    $mail->send($transport);
}
]]></programlisting>

    </example>

    <para>
        If you wish to have a separate connection for each mail
        delivery, you will need to create and destroy your transport before and
        after each <function>send()</function> method is called. Or alternatively,
        you can manipulate the connection between each delivery by accessing the
        transport's protocol object.
    </para>

    <example id="zend.mail.multiple-emails.example-2">

        <title>Manually controlling the transport connection</title>

        <programlisting language="php"><![CDATA[
// Create transport
$transport = new Zend_Mail_Transport_Smtp();

$protocol = new Zend_Mail_Protocol_Smtp('mail.example.com');
$protocol->connect();
$protocol->helo('sender.example.com');

$transport->setConnection($protocol);

// Loop through messages
for ($i = 0; $i < 5; $i++) {
    $mail = new Zend_Mail();
    $mail->addTo('studio@peptolab.com', 'Test');
    $mail->setFrom('studio@peptolab.com', 'Test');
    $mail->setSubject(
        'Demonstration - Sending Multiple Mails per SMTP Connection'
    );
    $mail->setBodyText('...Your message here...');

    // Manually control the connection
    $protocol->rset();
    $mail->send($transport);
}

$protocol->quit();
$protocol->disconnect();
]]></programlisting>

    </example>

</sect1>
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