_u.esendex.com._spf.dmarclyeu.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 _u.esendex.com._spf.dmarclyeu.com is not the root of its zone.
Instead, try zone transfer on dmarclyeu.com .