Joomla!-开源天空

JMail

This class extends PHPMailer and provides a common interface API for sending e-mail from the Joomla! framework. 

这个类扩展phpMailer并提供了发送邮件的通用接口

JMailHelper 

This static class has several methods that provide useful functionality for e-mail operations.

这个静态类提供了邮件操作的几个有用功能