> Export Issues
> This section presents issues associated with exporting messages from EMS to Rendezvous.
> JMSReplyTo
> Topics
> Consider an EMS message in which the field JMSReplyTo contains a topic. When exporting such a message to Rendezvous, you must explicitly configure tibemsd to import replies from Rendezvous to that reply topic.
> Temporary Topics
> Consider an EMS message in which the field JMSReplyTo contains a temporary topic. When tibemsd exports such a message to Rendezvous, it automatically arranges to import replies to that temporary topic from Rendezvous; you do not need to configure it explicitly.
> Certified Messages
> RVCM Registration
> When an RVCM listener receives its first labeled message, it registers to receive subsequent messages as certified messages. Until the registration is complete, it receives labeled messages as reliable messages. When exporting messages on a tibrvcm transport, we recommend either of two actions to ensure certified delivery for all exported messages:

> ● | Create the RVCM listener before sending any messages from EMS clients.

> ● | Pre-register an RVCM listener, either with the administration tool (see create rvcmlistener on page 119), or in the configuration file tibrvcm.conf (see tibrvcm.conf on page 229).

> Guaranteed Delivery

> | For full end-to-end certified delivery to Rendezvous from EMS, the following condition must be true:
> ● | EMS senders must send persistent messages.

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