So I did, sorry..
Try
http://luke.sheldrick.co.uk/Files/exim/exim.conf.rewrite.txt
________________________________________
From: Phil Pennock [exim-users@???]
Sent: Wednesday, March 05, 2008 9:03 AM
To: Luke Sheldrick
Cc: exim-users@???
Subject: Re: [exim] Rewrite FROM address
On 2008-03-04 at 11:27 +0000, Luke Sheldrick wrote:
> Just scraped the whole exim.conf, hopefully this'll be alright?
>
> http://luke.sheldrick.co.uk/Files/exim/exim.conf.txt
That appears to be your config _without_ the attempt to rewrite the
return path.
-Phil