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.
Optionally, you can also define a default From email address and name,
as well as a default reply-to header. This can be done through the static
methods setDefaultFrom() and
setDefaultReplyTo(). These defaults will be used when you
don't specify a From/Reply-to Address or -Name until the defaults are reset (cleared).
Resetting the defaults can be done through the use of the
clearDefaultFrom() and
clearDefaultReplyTo.
Example 574. Sending Multiple Mails per SMTP Connection
// Create transport
$config = array('name' => 'sender.example.com');
$transport = new Zend_Mail_Transport_Smtp('mail.example.com', $config);
// Set From & Reply-To address and name for all emails to send.
Zend_Mail::setDefaultFrom('sender@example.com', 'John Doe');
Zend_Mail::setDefaultReplyTo('replyto@example.com','Jane Doe');
// Loop through messages
for ($i = 0; $i < 5; $i++) {
$mail = new Zend_Mail();
$mail->addTo('studio@example.com', 'Test');
$mail->setSubject(
'Demonstration - Sending Multiple Mails per SMTP Connection'
);
$mail->setBodyText('...Your message here...');
$mail->send($transport);
}
// Reset defaults
Zend_Mail::clearDefaultFrom();
Zend_Mail::clearDefaultReplyTo();
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 575. Manually controlling the transport connection
// 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@example.com', 'Test');
$mail->setFrom('studio@example.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();