The PR_TRACE_INFO property contains trace information indicating how each messaging domain handled a particular message.
| Header file: | EDKMDB.H | 
| Applies to: | Message transfer envelope objects (information store objects) | 
| Identifier: | 0x6660 | 
| Property type: | PT_BINARY | 
| Access: | Read/write | 
The PR_TRACE_INFO property contains information about where a message has been since it was created. When the information associated with this property is prepared for transmittal across a foreign system, Microsoft Exchange Server encodes the information in a transmission-neutral encoding format (TNEF) with a little-endian byte order.