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 F219803636DCA0CE0495BECFF5D22808.902B53CBD3E598D98FB4708CADD52BB6.5e0f9bb618ddd.comodoca.com is not the root of its zone.
Instead, try zone transfer on comodoca.com .
Instead, try zone transfer on comodoca.com .