I'm trying to setup Mailgun with ODK Central (running on AWS EC2). I tried to follow the instructions but Mailgun is not finding the DNS records.
Instructions on Mailgun show this:
And my DNS settings are as follows:
Note, that I couldn't add the second MX record:
I'm wondering if it might be because I have Central at a subdomain and SSL not setup for the apex domain? (There's no site at the apex domain right now.)