I have one of the really old bytemark servers which I'm migrating over to the newer cloud based option. I've used (fairly) successfully my old server to relay mail from my exchange server at home, since this is on a dynamic (!!) IP, and sending from here is obviously unreliable and silly. It's actually been really good and I've had it this way, way before I've even moved to bytemark. Bottom line here is I don't want to change this setup.
Now, I simply configured exim via dpkg-reconfigure exim4-config carrying across the old config over to the new one. However this does not work, "Relaying not permitted" At this point I suddenly uh-oh remembered that symbosis uses its own exim 4 config, and I've probably broken everything.
Help would be wonderful..