At 7:53 AM -0600 12/28/01, Andrew Schmiechen  imposed structure on a 
stream of electrons, yielding:
>Anyone know what this log message means?  It's repeated over and over and
>over in my logs.
>
>00:09:12 1 SMTP-250(dennisnet.co.uk) 'From' rejected, got 400 4.4.0
>Interactive routing subsystem is not enabled\r

It means that one machine handling mail for  dennisnet.co.uk is 
seriously screwed up, and your SIMS server is apparently trying to 
send it mail. In looking at the 2 MX's for that domain, I see that 
they are apparently running some sort of bleeding-edge (i.e. later 
than those on the FTP site) version of ZMailer, a rather obscure Unix 
MTA. On the lower-metric MX for that domain, it is broken and refuses 
to accept any MAIL FROM command, and responds with:

400 4.4.0 Interactive routing subsystem is not enabled

Eventually either the people running that machine will fix it or SIMS 
will give up retrying and bounce the mail aimed there.

-- 
Bill Cole
[EMAIL PROTECTED]


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