So I think the reduced budgeting makes the most sense! Big spend coming up for next year! Anyway, since these are registered through the web browser, there is no outgoing from my email. I also tried registering outside of our enterprise network with no joy. Incoming email should hit our Cloud ESA first and I should be able to find it there, even if it did get filtered. So kind of ruled out firewall or filtering. I did contact my Meraki rep so waiting to see what he says.
Thanks for the suggestions, I will update as soon as I get resolved.