[EXIM] localhost problem

I have exim-1.90 installed. I just upgraded my fetchmail. Now it is
forwarding mail to nbecker@localhost. Exim wouldn't delivery this
mail, it says:

1998-12-01 08:04:53 0zkpU5-00016i-00 <= nbecker@??? H=localhost [127.0.0.1] P=esmtp S=969 id=E0zkpTH-00016f-00@???
1998-12-01 08:04:53 0zkpU5-00016i-00 remote host address for localhost.hns.com is the local host

I had to add localhost:localhost.hns.com to local_domains.

Seems that this should be in the example configure file.

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