Hi, In a Exchange 2007 environment when I do "test e-mail autoconfiguration" on my outlook I got a configuration file stating that OOF and OAB url is https://servername.domain.com/EWS/Exchange.asmx We are publishing our OWA as https://eposta.xyz.com from ISA 2006. External URL on CAS Servers is https://eposta.eyz.com/owa Internal URL on CAS is https://servername.domain.com/owa When looking at autoconfigutaion xml, clients are going to CAS Servers directly by passing isa. How can i make exchange to announce oab and oof URL's like https://eposta.xyz.com/...

Try test email autoconfiguratio for a outlook anywhere client and not domain joined client and see what urls you get Dhruv || Email - Polaris_1942@hotmail.com

none of the clients are joined to domain and most of them are already outlook anywhere.

Hi Evren, Try using the following cmdlets, specifying the OAB identities if needed: Set-OABVirtualDirectory \OAB* -ExternalURL https://eposta.eyz.com/OAB Set-WebServicesVirtualDirectory \EWS* -ExternalURL https://eposta.eyz.com/ews/exchange.asmx SteveSteve Goodman Check out my Blog for more Exchange info or find me on Twitter