_dc-mx.4d5ae679ae14.skcvbhu.br.com IXFR zone transfer

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 _dc-mx.4d5ae679ae14.skcvbhu.br.com is not the root of its zone.
Instead, try zone transfer on skcvbhu.br.com .