On Wed, 8 Aug 2007, Mike Brudenell wrote:
> > I'm *sure* I remember Philip mentioning how to test whether a message
> > arrived over SMTP or not during the course, but I currently I can't
> > locate the information.
Test $received_protocol if you really mean exactly what you say above.
If you actually mean "received from another host", check
$sender_host_address for not being empty.
--
Philip Hazel University of Cambridge Computing Service
Get the Exim 4 book: http://www.uit.co.uk/exim-book