mta-2d567400.ip4.emsmtp.us 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 mta-2d567400.ip4.emsmtp.us is not the root of its zone.
Instead, try zone transfer on emsmtp.us .