Conversation.GlobalUniqueRecipients property

Gets a list of all the people who have received messages in this conversation across all folders in the mailbox.

Namespace:  Microsoft.Exchange.WebServices.Data
Assembly:  Microsoft.Exchange.WebServices (in Microsoft.Exchange.WebServices.dll)

public StringList GlobalUniqueRecipients { get; }

Property value

Type: Microsoft.Exchange.WebServices.Data.StringList
A list of recipients.

Use the UniqueRecipients property to get the list of all the recipients of conversation items in the current folder.