[exim] Exim suddenly starts panicing

I'm maintaining a system that has Exim on it, that has been running fine
for over a year. I didn't install it and don't really understand Exim,
I just "inherited" it. Suddenly it stopped working and I see this in
the exim_paniclog:



2005-07-08 13:21:52 unknown lookup type "127.0.0.1"

2005-07-08 13:27:15 unknown lookup type "127.0.0.1"

2005-07-08 13:27:19 unknown lookup type "127.0.0.1"

2005-07-08 13:29:31 unknown lookup type "127.0.0.1"

2005-07-08 13:31:45 unknown lookup type "127.0.0.1"

2005-07-08 13:32:57 unknown lookup type "127.0.0.1"



The log is just full of that error over and over. What could suddenly
have caused this? Any clues?



John