wso2esb - WSO2 ESB: message processor exponential redelivery -

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i use message processors on wso2 esb 4.7.0 , need deliver message endpoint (which can unavailable).
how implement exponential back-off redelivery strategy?

this scenario can covered through dead letter channel, please refer following link on how can done. http://docs.wso2.org/wiki/display/integrationpatterns/dead+letter+channel


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