Hi How can you setup mail redirection in such a way that 1. Email sent to a particular domain get redirected to another domain... e.g email sent to *@olddomain.com get redirect to *@newdomain.com 2. What feature within exchange 2010 can accomplish this ?

Hub Transport Rules or Shared SMTP space perhaps.

Does the old domain still exist?

Hi, if you need some information about transport rules you will find more information here: http://technet.microsoft.com/en-us/library/aa995961.aspx regards Thomas Paetzold visit my blog on: http://sus42.wordpress.com