add config setting 
add config setting 

in order for the Successes channel to be populated,have to set config.Producer.Return.Successes to true
remerge/sarama,VividCortex/sarama,vrischmann/sarama,DataDog/sarama,vrischmann/sarama,VividCortex/sarama,mailgun/sarama,raisemarketplace/sarama,remerge/sarama,raisemarketplace/sarama,Shopify/sarama,Shopify/sarama,mailgun/sarama,DataDog/sarama