fll1-mx02-fe02.m9network.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 fll1-mx02-fe02.m9network.com is not the root of its zone.
Instead, try zone transfer on m9network.com .