Hi All We are running plesk 8.2.1 with qmail on a redhat box. Some of our clients use third party spam/virus filtering services and others do not. For the ones that do, we wish to restrict which IPs we accept incoming email from. This would be easy to do if all our clients used the third party service - but because that is not the case, we need the access control to be per domain. Does anyone have any idea how we can go about this [inside or outside of Plesk]? Many Thanks!