Hi All, When is it recommend to combine CAS/HUB Role on a single server? I like that idea of a standard setup but not sure if it is suited for a large deployments 100k+ users and I will be using CAS Arrays. Thanks ECL

Hi, You should go through this microsoft whitepaper White Paper on: Determining the Scalability of Combined Client Access and Hub Transport Server Roles in Exchange 2007 . http://technet.microsoft.com/en-us/library/dd901772(EXCHG.80).aspx Regards from www.windowsadmin.info

Hi Sorry I forgot to mention its exchange 2010. Thanks ECL

Hi, This is applicable for 2010 http://technet.microsoft.com/en-us/library/dd298121.aspx Regards from www.windowsadmin.info

Thanks :)