Hi Theo, it looks like your emails in your waterfall were not validated as your Zero Bounce API key ran out of credits. Could you ensure you are using the correct API key or add more credits to your Zero bounce account and then re-run the Zero-bounce columns? Because the emails were not validated, this caused all the providers in your waterfall to run due to the waterfall logic of only returning "safe to send" emails as valid. Because no email was able to be validated, there are no emails returned in the final output column.
I just refunded you 5K credits for the unnecessary providers that were ran due to the Zero bounce column not working. In the future, I recommend running your waterfall on 10 rows first to check that everything is working correctly. This will help avoid large credit drops!
Please try updating your Zero bounce API key and let me know if that resolves your issue!
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