[Mailman-Users] mailing lists failing - URGENT

[Merle Reine]

my mailing lists have been working for many month and all of a sudden 
after a reboot, fail to send.  I get no errors and in the /var/log/mail 
is shows:

Feb  3 14:10:40 mail postfix/local[12282]: 8C5AD18EC02: 
to=<alert at lindows.com>, relay=local, delay=0, status=sent 
("|/usr/lib/mailman/mail/mailman post alert")

I is sending to the list but the list is not sending out to the 
recipients.  This is urgent, anyone have any ideas?