New MIAB user and thoroughly impressed! Following the instructions the box is set up with a dedicated domain to manage the box.
I added a new user for second domain which has its DNS managed by AWS Route 53 for a site behind a WAF & Cloudfront. I added the appropriate DNS records at Route 53 pointing to my MIAB and mail is working. YAY!
When I look at the MIAB control panel > external DNS, there are DNS settings (A records) for the second domain which conflict with the A records at Route 53.
I tried to use the API under custom DNS to delete the A records:
curl -X DELETE https://box.example.com/admin/dns/custom/secondexample.com --user email:pass
It seems to work and doesn’t return any errors but the records are still there. How do I delete these records ?