I’m afraid I haven’t used sendgrid, but do you need to verify your inbox, as the green message in the first screenshot indicates?
I’ll add the universal Troubleshooting email on a new Discourse install link too, just in case you’ve not seen it yet. 
I’m afraid I haven’t used sendgrid, but do you need to verify your inbox, as the green message in the first screenshot indicates?
I’ll add the universal Troubleshooting email on a new Discourse install link too, just in case you’ve not seen it yet.