Since the last upgrade, my IC2 installation is sending a Data Integrity Report every night. I did not find any possibility to disable this mail or to configure the alerting (e.g. to only send a mail, if there are errors).
Currently, there is no way to disable the report. In the coming ICA release, the report will be sent only when an error is detected. You might PM me your ICA’s s/n and I could patch your system with the update.