Foreign System to Gateway Message Transfer

The following steps are performed when the foreign system transfers a message to the gateway:

1. The foreign system assigns a message ID to the message being transferred.
2. The gateway creates:
   • A MAPI message (the content message) to contain the content of the incoming message.
   • An MTE message to contain the content message.
3. The MAPI message identifier of the content message is assigned to the MTE’s PR_CONTENT_IDENTIFIER property.
4. The message ID from the incoming message is assigned the MTE’s PR_FOREIGN_ID property.
5. If the gateway builds a delivery or nondelivery report, the PR_FOREIGN_SUBJECT_ID property from the MTE is assigned to the subject ID of the report.