Recipient Reassignment

Microsoft Exchange Server does not expose some X.400 alternate-recipient functions, although the Microsoft Exchange Server MTA supports all of these functions when it receives messages with the flags set. The recipient reassignment functions are:

• Recipient-assigned alternate recipient. The recipient redirects the message to someone else. This function, which can be disabled by setting the "Recipient_Reassignment_Prohibited" flag in the message, is supported in Microsoft Exchange Server.
• Management domain (MD)-defined alternate recipient or dead-letter recipient. This can be disallowed by setting the "Alternate_Recipient_Allowed" flag appropriately in the message. This is not supported in the Administrator program.
• Originator-requested alternate recipient. The originator requests that an alternate recipient be used if the message would otherwise return an NDR. This feature is not supported in Microsoft Outlook or the Microsoft Exchange Server information store.

The redirect-and-deliver function is specific to Microsoft Exchange Server. If this flag is set, a copy of the message is delivered to the recipient and to the specified alternate recipient. To maintain X.400 conformance, a delivery receipt is sent only for the copy delivered to the alternate recipient.