適用対象: Outlook 2013 | Outlook 2016
Delegate access refers to the user's ability to send a message as another user or receive a message for another user. Delegate access is a service provider-independent feature of MAPI that transport providers can support if they choose. However, no provider is required to do so. Delegate access is valuable when it is necessary for a user to send messages as, or filter incoming messages for, another user or when a user must access another user's message store. Before allowing a delegate user to connect to another user's store, the message store provider must verify that the delegate user has the proper authority.
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PR_SENT_REPRESENTING_ADDRTYPE (PidTagSentRepresentingAddressType)
PR_SENT_REPRESENTING_EMAIL_ADDRESS (PidTagSentRepresentingEmailAddress)
PR_SENT_REPRESENTING_ENTRYID (PidTagSentRepresentingEntryId)
PR_SENT_REPRESENTING_NAME (PidTagSentRepresentingName)
PR_SENT_REPRESENTING_SEARCH_KEY (PidTagSentRepresentingSearchKey)
PR_RCVD_REPRESENTING_ADDRTYPE (PidTagReceivedRepresentingAddressType)
PR_RCVD_REPRESENTING_EMAIL_ADDRESS (PidTagReceivedRepresentingEmailAddress)
PR_RCVD_REPRESENTING_ENTRYID (PidTagReceivedRepresentingEntryId)
PR_RCVD_REPRESENTING_NAME (PidTagReceivedRepresentingName)
PR_RCVD_REPRESENTING_SEARCH_KEY (PidTagReceivedRepresentingSearchKey)
On outgoing messages, the PR_SENT_REPRESENTING properties identify the messaging user that should act as the sender. Clients can set these properties as an option. If the PR_SENT_REPRESENTING properties are not set by the time the message reaches a transport provider that supports delegate access, it is the provider's responsibility to set them along with the PR_SENDER properties.
受信メッセージの PR_RCVD_REPRESENTING プロパティは、受信者として機能するユーザーを識別します。 デリゲート メッセージの配信を担当するトランスポート プロバイダーは、PR_RCVD_REPRESENTING プロパティと PR_RECEIVED_BY プロパティの両方を設定 する 必要があります。 デリゲート メッセージを受け取るクライアントは、 PR_SENT_REPRESENTING プロパティの値を対応する PR_RCVD_REPRESENTING プロパティにコピーする必要があります。
たとえば、Sally が休暇中に、John が Sally のメッセージを受信しているとします。 PR_RCVD_REPRESENTINGプロパティは、John を代理人の受信者として識別します。 John が Sally に対して受信したメッセージに返信を送信すると、メッセージの PR_SENDER プロパティは John を送信者として識別します。 John は Sally を表しているため、 PR_SENT_REPRESENTING プロパティは Sally を識別します。
Transport providers handling incoming delegate messages should usually deliver these messages as the messaging user identified by the PR_SENT_REPRESENTING properties rather than as the user identified by the PR_SENDER properties. The exception to this rule is when it is necessary to match access privilege and transport types. In this case, a transport provider can choose a sending identity.
If the PR_SENT_REPRESENTING properties are unavailable for an incoming delegate message, the transport provider handling delivery must set them, using the values of the corresponding PR_SENDER properties. If the PR_SENT_REPRESENTING properties are available but the transport provider does not support delegate access, it can use the PR_SENDER properties for delivery.