interface MessageRecipientsThe interface for a group of message recipients (which may contain only one recipient)
| AllPossibleRecipients |
interface AllPossibleRecipients : MessageRecipientsA special base class for the set of all possible recipients, without having to identify who they all are. |
| MessageRecipientGroup |
interface MessageRecipientGroup : MessageRecipientsA base class for a set of recipients specifically identified by the sender. |
| SingleMessageRecipient |
interface SingleMessageRecipient : MessageRecipientsA base class for the case of point-to-point messages |