Is there a way to verify the SendGrid API key for without Bubble.io making assumptions about the domain that is verified in SendGrid?

i’m attempting to setup email sending via SendGrid. In SendGrid the subdomain em639.lynkpeople.com is validated with a green check. In Bubble.io for the domain / email page settings the domain is compliance-hub.lynk.global. My company uses different domains for its email (lynkpeople.com) and website (lynk.global).

Is there a way to verify the SendGrid API key for compliance-hub.lynk.global without Bubble.io making assumptions about the domain that is verified in SendGrid?