A month ago or so, I wrote:
 > I migrated my main machine here to Postfix three years ago; as a
 > result of that experience all my other machines are still running
 > sendmail.
 >   :
 > IIRC the fundamental problem is that if you tell it to deliver local
 > mail elsewhere, it assumes you mean *all* local mail and silently
 > ignores the aliases file...

For the record, the right answer is to use

   mailbox_transport = smtp:mail.server

rather than

   local_transport = smtp:mail.server

I don't think local_transport existed in the version of Postfix that I
was using three years ago, because I would have had to be pretty darn
blind to miss it. But that's always a possibility... :-/

-- 
   - David A. Holland / dholland@eecs.harvard.edu