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Sun™ ONE Messaging Server: Practices and Techniques for Enterprise Customers by Dave Pickens

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Conversion Channel

The conversion channel feature of the MTA provides a method of processing a message and its attachments. By default, nothing is configured in the conversion channel and nothing is configured to route through the conversion channel.

When you work with the conversion channel, it is important to have a good understanding of Multipurpose Internet Mail Extensions (MIME) messages and their structure. The setup and implementation of conversion routines require that you access the MIME-type information of message parts as they are presented to your conversion routines, so a general description of a MIME message is required to understand how to do this. Consider the following analogy.

A train is made up of one or more engines coupled ...

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