It's going to take a couple of weeks. We really need to serve the onboarding emails now - updating our backend to another service will only take 1-2 days. Howe

It's going to take a couple of weeks. We really need to serve the onboarding emails now - updating our backend to another service will only take 1-2 days. However, I have started the warm-up process in SparkPost for the long term, Thanks.