ZF Zend Framework

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Programmer's Reference Guide

Sending via SMTP
Zend_Mail
Programmer's Reference Guide

Sending Multiple Mails per SMTP Connection

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.

Example #1 Sending Multiple Mails per SMTP Connection

// Create transport
$transport = new Zend_Mail_Transport_Smtp('localhost');

// 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);
}

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 send() method is called. Or alternatively, you can manipulate the connection between each delivery by accessing the transport's protocol object.

Example #2 Manually controlling the transport connection

// Create transport
$transport = new Zend_Mail_Transport_Smtp();

$protocol = new Zend_Mail_Protocol_Smtp('localhost');
$protocol->connect();
$protocol->helo('localhost');

$transport->setConnection($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();
Sending via SMTP
Zend_Mail
Programmer's Reference Guide
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