Hi,My internal domain is testdemo.com and i want to piblished my as domain testdemo.in on Internet for OCS access.I mean can i use different domain name for external Wan users in OSC 2007 R2.If YesHow can I do this ?RegardsDeepak Srivastava

I believe what you're after it a split-brain DNS.http://msdn.microsoft.com/en-us/library/ms954396.aspx

Hi,Read this reference from Microsoft website http://technet.microsoft.com/en-us/library/aa998359(EXCHG.80).aspxThis explains the method to simplify OWA. I believes the same technology can be applied fro your purpose Regards from www.windowsadmin.info