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 EF0C52233101B260F979DA0C49215395.D1339C7C83975E2C2EC12209B704EB0D.e68ff056c51e7770f1.comodoca.com is not the root of its zone.
Instead, try zone transfer on comodoca.com .
Instead, try zone transfer on comodoca.com .