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 tm18hkqed54relgifq09pu4u0ha2le8q.spamfilter.io is not the root of its zone.
Instead, try zone transfer on spamfilter.io .
Instead, try zone transfer on spamfilter.io .