Hello there, @ltgworcester.
I can see here that you've posted the same question twice. I'd recommend following the troubleshooting steps I've shared in this post: https://quickbooks.intuit.com/learn-support/en-uk/transactions/can-not-send-invoices-its-saying-reac....
Also, you can read through this article for more information message you're received: I received the message "You've hit your email limit"?
Visit us here again if you have other questions or concerns. The Community and I are always here to help.
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