Dear reader, 1) We are a relative small company moving from former Exchange versions to 2007 (SP1) 2) We decided that we would not use the Edge Server role because it is rather expensive (additional hardware). 3) Main reason to move to Exchange 2007 is that we can use the enhanced anti spam facilities (and the like). Note: We also installed Forefront for Exchange (SP1). 4) Anti Spam updates is why we opted to install the Enterprise Version of the product, because only that version supports the (daily) updates. We used an Enterprise Key to activate Exchange. 5) We enabled the anti-spam functionality on the Hub Transport server ./install-AntispamAgents.ps1. No problem. 6) We created a policy in Server 2008 to update Exchange via the WSUS (3.0 SP1) on an hourly basis. 7) On the WSUS server, we do receive the Microsoft Exchange Server 2007 Enterprise Block List and the Microsoft Exchange Server 2007 Enterprise Anti-spam Signatures on a regular basis (several tines per day). Perfect. Problems are following: A: We see in the WSUS that our Exchange Server does not install the Enterprise versions of the filters (mentioning Not Applicable). However, it does install the Standard Filters (that are updated once per month). This is of course a behaviour we do not want. Where can we locate the problem and how can we solve it? B: In addition, we discovered that anti-spam functionality on the Hub Transport server does not enable us to e.g. enter domains in the Allow List Some of the filters simply do not have the Property tab (they have it on the Edge Server). What to do? -- Jan