Despooler received an instruction and package file from site %1 that contains either software distribution data or inter-site ...

%11Despooler received an instruction and package file from site %1 that contains either software distribution data or inter-site replication data, however the despooler does not have the public key to verify the signature of the package.  The instruction cannot be processed and will be retried.

Solution: Extend the Active Directory schema to allow sites to publish their public keys into AD, or use the preinst.exe tool to manually replicate the public keys.%0