| Class Summary | 
| DistributionMail | Represents each one of the messages received or sent by the application. | 
| MailEditorHandler | The OutputHandler sends the processed message directly
 to the OutputChannel. | 
| MailFunctions | Mail functions library for expressions. | 
| MailWriterHandler | This handler writes the message data to a file. | 
| POP3Handler | The POP3Handler stablishes a connection to a POP3 server and
 retrieves the messages stored, which are then forwarded to other
 nodes. | 
| SMTPHandler | A JavaMail based SMTP output channel implementation. |