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 mx-106-65.klm.estpak.ee is not the root of its zone.
Instead, try zone transfer on klm.estpak.ee .
Instead, try zone transfer on klm.estpak.ee .