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Specifies contents of "References:" header field.
Declaration
Parameters
Description
Reply message should have "References:" header field which may be used to identify a "thread" of conversation.
If initial message is a reply itself then References of the reply will contain combined content of its "References:", "InReplyTo:" and "MessageID:" fields depending on their presence.
Note, this property is read-only. Use SetReferences method to set its value.