The addition of

DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')

to the default redhat.cf is a nice example of RedHat's obvious commitment i
7.1 to make more secure defaults.  I think this is an important goal.

That said, this is pretty obscure.  I have RedHat 7.1 beta running on a
test box that I'm simulating all my normal operations with so I can be
comfortable upgrading to 7.1 shortly after it comes out.  One of these
boxes is an actual mail server.  I couldn't find anything documented about
this change or how to fix it.  Luckily, I know how to write a sendmail
configuration and how to use netstat -an | grep LISTEN, so it didn't take
me too long to discover this.  I imagine some people expecting to run mail
hubs under 7.1 will probably have a hard time figuring out why sendmail
doesn't seem to be working even though it is running.

I'm not really suggesting that the default be changed, but I wonder whether
there may not be a better way to do this.  I also hope that
/usr/lib/sendmail-cf/cf/redhat.mc should be marked %config in the rpm.

It may be better to have this in /etc/mail/mail.mc rather than redhat.mc
since people who are configuring their own mail servers are more likely to
find it there.