On the PHP::Impact blog, there's a new post talking about his conversion from Swift Mailer over to the Zend_Mail component of the Zend Framework.

I've recently switched from Swift Mailer to Zend_Mail and, to be honest, I'm loving it. Finally someone developed a lightweight, powerful and easy to use Mail component!

He includes an example or two showing a basic mailer script, one that uses a fluent interface, one sending an HTML email and two that show how to use a remote SMTP server.