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To send an email using an SMTP server, the steps are similar to sending a basic message. Set the delivery method to smtp and assign any options to the Email object's smtpOptions property. You may also retrieve SMTP errors generated during the session by reading the smtpError property of the component.

   /* SMTP Options */
   $this->Email->smtpOptions = array(
        'port'=>'25', 
        'timeout'=>'30',
        'host' => 'your.smtp.server',
        'username'=>'your_smtp_username',
        'password'=>'your_smtp_password',
        'client' => 'smtp_helo_hostname'
   );

    /* Set delivery method */
    $this->Email->delivery = 'smtp';

    /* Do not pass any args to send() */
    $this->Email->send();

    /* Check for SMTP errors. */
    $this->set('smtp-errors', $this->Email->smtpError);

1. /* SMTP Options */
2. $this->Email->smtpOptions = array(
3. 'port'=>'25',
4. 'timeout'=>'30',
5. 'host' => 'your.smtp.server',
6. 'username'=>'your_smtp_username',
7. 'password'=>'your_smtp_password',
8. 'client' => 'smtp_helo_hostname'
9. );
10. /* Set delivery method */
11. $this->Email->delivery = 'smtp';
12. /* Do not pass any args to send() */
13. $this->Email->send();
14. /* Check for SMTP errors. */
15. $this->set('smtp-errors', $this->Email->smtpError);

If your SMTP server requires authentication, be sure to specify the username and password parameters for smtpOptions as shown in the example.

If you don't know what an SMTP HELO is, then you most likely will not need to set the client parameter for the smtpOptions. This is only needed for compatibility with SMTP servers which do not fully respect RFC 821 (SMTP HELO).