Message Has Undeliverable Status between Post Offices

Problem: A user sends a message to a recipient in a different post office, and the message comes back with a status of Undeliverable.
Explanation: A status of Undeliverable indicates either that the user to whom the message is addressed does not exist in the post office, or that the post office does not exist in the domain.
Possible Cause: The sender manually typed the recipient’s address, rather than selecting it in the GroupWise Address Book, and typed it incorrectly.
Action: Have the sender select the recipient in the GroupWise Address Book so the address is provided automatically, then resend the message.
Possible Cause: If the sender is selecting a group from the GroupWise Address Book, rather than an individual recipient, the group could be out of date if the recipient’s user ID or post office has changed.
Action: Re-create the group by selecting each individual user from the Address Book to make sure current user IDs and post offices are included in the group.
Possible Cause: If the recipient is a new user, the sender might have sent the message before the recipient was actually created in the post office.
Action: Verify the existence of the user in the post office before the sender tries to send the message again.
Possible Cause: The recipient’s mailbox might be damaged so the message cannot be delivered.
Action: In ConsoleOne, perform maintenance to correct any problems with the recipient’s mailbox. See Maintaining User/Resource and Message Databases in Databases in the GroupWise 7 Administration Guide.