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 cb311e60-ddbb-4fdb-8518-870d9a09ec0c.manage-now.de is not the root of its zone.
Instead, try zone transfer on docusign.net .
Instead, try zone transfer on docusign.net .