| Exception |
| Transport |
| MailerAwareTrait | Provides functionality for loading mailer classes onto properties of the host object. |
| AbstractTransport | Abstract transport for sending email |
| CakePHP Email class. | |
| Mailer | Mailer base class. |
| TransportFactory | Factory class for generating email transport instances. |
| TransportRegistry | An object registry for mailer transports. |
