Postfix now times out??

[Jeremy Blonde]

I encountered a strange error today with my new MailScanner box that's
been up and running for a few weeks.

Postfix now times out when trying to send mail to the box.  The machine
still responds to smtp connections, but all of them timeout.  The
MailScanner and postfix processes are still running, the machine seems
to store the message in the "incoming" folder, but doesn't close the
connection after the ending ".".

Does anyone have any ideas?

Thanks,
Jeremy Blonde
Instructional Technology - Server Support
Grant Joint Union School District