This involves Outlook as well as Exchange, so is slightly off topic. However, I can't get the redirect function (rules wizard) in Outlook to work with an external email address. I can set up the wizard to forward incoming email to another internal recipient, but not to an external one. I am currently trying to redirect new incoming mail to a Custom Recipient that has an external mail address, but this server side function doesn't work. I can configure it manually on the Exchange server no problem, but I need to be able to let the users do this via Outlook.