Sparkpost error 550.5.7.1. What is prompting this message?

            This type of error response does not stem from your Kyvio integration but is rather an issue with your Sparkpost account or mailing setup.


            You need to contact Sparkpost support or try checking out this helpful article from SparkPost guide pages. Please click below:


            Updated: 30 Nov 2017 12:30 AM
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