I need to find a way to be able to block whole IP ranges (160.0.0.0/8) instead of just subnets for them (106.0.0.0/24) in the Protection tab under the EAC. We are getting a lot more spam since moving to O365 because we can’t use our previous IP filters. This is becoming more visible and a pain point to our users daily.
This is in Exchange Online by the way.