Using this method of routing, the receiving queue manager does not know that the sending queue manager has given it an alias name. The aliasing is confined to the sending queue manager only.
When a message is sent from the mobile device application to the SERVICEXQM queue manager, MQe maps the SERVICEXQM name to SERVER23QM in the connection , and sends the message to the SERVER23QM queue manager.
If the Mobile58QM then wished to send its messages to a different server queue manager, Server24QM, it would remove the alias SERVICEXQM from the Server23QM connection, and add it to a Server24QM connection. This has no impact on the receiving queue managers, or the sending applications.