On Tue, Aug 08, 2006 at 10:52:13AM -0500, admin at lctn.org wrote:
> I have a school mail server on a Centos 4.2 box that has been running fine
> for almost a year. We haven't made any changes on it for many months.
> Today I got a call from a staff member saying no one could retrieve or
> send email.  We relay the mail to this server after scanning for spam.
> Nothing has been changed on that server either. Messages sent to their
> domain get bounced back from our relay server with the following info:

[snip]

I Googled for that error message, and found several hits.  Did you STFW
before posting?

-- 
trammell at el-swifto.com  9EC7 BC6D E688 A184 9F58  FD4C 2C12 CC14 8ABA 36F5
Twin Cities Linux Users Group (TCLUG)      Minneapolis/St. Paul, Minnesota