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Inside Microsoft® Exchange Server 2007 Web Services by Huw Upshall, Mark Taylor, Ben Spain, Michael Mainer, David Sterling

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Message Properties

In addition to the properties inherited from ItemType, MessageType exposes its own set of properties as listed Table 7-2.

Table 7-2. First-Class Properties on MessageType

Property name

Type

Comments

ConversationIndex

base64Binary

An identifier that is used to link multiple messages together into a single conversation. All messages that have the same ConversationIndex property value are considered to be in the same conversation.

ConversationTopic

String

Describes the overall topic of a conversation. For most scenarios, the value of the Subject property is an appropriate value for the ConversationTopic.

From

SingleRecipientType

This is the recipient information for who sent the message.

InternetMessageId

String

Represents the Internet message ...

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