[Exim] Adding a footer

I wonder if anyone can help.

I want to add a footer to all emails that passes through Exim.
(Incoming and outgoing)

I have read the docs (exim-filter.pdf), but cant get it to work,
I am still a newbie with filters and stuff.

Any help would be appreciated

____________________
Herman A Cremer
Systems Engineer &
        Developer
SolidLiquid Pty Ltd
South Africa
+27 (0) 12 665 0636
____________________