Changes since SOA version
IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.
Not an apex domain
The domain my-mx.email-protect.gosecure.NET is not the root of its zone.
Instead, try zone transfer on email-protect.gosecure.NET .
Instead, try zone transfer on email-protect.gosecure.NET .