Sendmail Problem

["Jeff Grossman" <jeff@stikman.com>]

I just set up a Debian system using testing as the source.  I moved from a
Gentoo Linux system.  I installed Sendmail.  I am able to send and receive
e-mail outside of this box with no problems.  But, cron is not able to
send any e-mails from within the box.  Here is the error message:

   ----- The following addresses had permanent fatal errors -----
jeff
    (reason: 530 5.7.0 Authentication required)
    (expanded from: jeff)

It wants to authenticate local mail to local users.

Any help would be appreciated.

Thanks,
Jeff