This documentation is archived and is not being maintained. Namespace

Exchange Server 2003 Namespace

This content is no longer actively maintained. It is provided as is, for anyone who may still be using these technologies, with no warranties or claims of accuracy with regard to the most recent product version or service release.

The namespace defines scope for a set of fields that are accessible in the IMessage.EnvelopeFields property of a Message object when it is passed to a transport event sink handling one of the Network News Transfer Protocol (NNTP) OnPost, NNTP OnPostEarly, or NNTP OnPostFinal transport events. These fields are only available for messages that are still in transport, and are therefore only used when writing a transport event sink. For more information, see SMTP/NNTP Transport Event Sinks with CDO.