No.  When both components are fully hosted in Blackbaud's Application Hosting environment, the tunnel between the Raiser's Edge Web Server and Blackbaud NetCommunity Web Server never leaves our secure network, so there is no threat of data being intercepted and it is an unnecessary expense to purchase certificates for the Raiser's Edge Web Server.

Note: Security Certificates should be used if only Blackbaud NetCommunity is hosted in the Blackbaud Application Hosting environment, while The Raiser's Edge is hosted by the organization.