Sendgrid was configured, but started from '' after changing to subdomain

I have set up my sendgrid API key and it has been correctly sending from my domain.

However, I had to move Bubble from the primary domain to a subdomain. Ever since that move, emails are coming from instead of my domain.

I am not seeing any errors in the configuration anywhere in Bubble or Sendgrid. It even sent a test email correctly from my domain.

I can’t figure out what setting I need to change to get it to work again on the subdomain instead of bare domain.

Solution: there were two authorized sending domains, and I had one with the subdomain outgoing set as the default. Switching the default to my bare domain fixed it instantly.