I recently installed 1.3 on a machine that is not permanently connected 
to anywhere, and so does not have a domin name. Whenever sendmail tries 
to do anything with 'localhost', such as newaliases or any mailing, it 
barfs with a message like unable to validate hostname.

I solved this by having /etc/hosts changed from

127.0.0.1	localhost hostname

to

127.0.0.1	localhost localhost.hostname hostname

This seems to do the trick, but is it The Right Way?

	- Joel Reicher