We're using Outlook 2010 and Exchange 2007.
I have a user in our domain, email@example.com, who needs to send out a message that should appear to come from an address in another domain. The foreign address is an alias for a journal, say Eng_Journal_Submissions@ieee.org.
When she uses the From: pulldown in the Outlook composition window, she ultimately gets a bounce telling her "You are not allowed to send this message because you are trying to send on behalf of another sender without permission to do so."
It's fairly easy let somebody send as (or send on behalf of) another user in the same domain (e.g. firstname.lastname@example.org). But is there any way to let her appear to send from a foreign email address, using Outlook and Exchange?