Thank you for your reply dated Fri, 12 Feb 2010 01:59:42 +0000.
> > 'data' appears to be used in a different context, that of matching,
> > whilst file_transport and pipe_transport appear to be directing the
> > emails to another location.
> >
> > If my understanding is correct, > It isn't. The lookup just returns some text, which the redirect
> router interprets to decide which type of transport to use.
That's interesting. Do you know of any redirect router interpretation
tables that give more information on this router's action criteria ?