# JMSExpiration

When `tibemsd` imports and translates a Rendezvous certified message, it sets the `JMSExpiration` field of the EMS message to the time limit of the certified message.

See `JMSExpiration` for more information.

If the message time limit is exceeded, the sender program no longer certifies delivery.

Note that if the `expiration` property is set for a destination, it will override the `JMSExpiration` value set by the message producer.

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