[cobalt-users] [RaQ3] Sendmail problem- domain must exist

[Glen Scott <glen@xxxxxxxxxxxxxxxxxxxx>]

Hi,

I am concerned about the following message in my syslog:

Jun  6 09:55:10 us sendmail[24646]: JAA24646: ruleset=check_mail, 
arg1=<publicnet-owner@xxxxxxxxxxxxxxxxxxxxx>, 
relay=mailhost.netbenefit.co.uk [212.53.64.39] (may be forged), 
reject=501 <publicnet-owner@xxxxxxxxxxxxxxxxxxxxx>... Sender domain 
must exist

Basically, publicnet-owner@xxxxxxxxxxxxxxxxxxxxx is trying to send a 
message to a user on our RaQ3.  But the message is not getting 
through, and this is the message we are getting in our logfile.

From the above, it would appear the list.netbenefit.co.uk domain does 
not exist, but in fact it *does*.  And I can ping this domain name 
from the RaQ3.

Can anyone shed any light on why this problem may be occuring?  I 
have searched the archives, and Google, but no luck so far :(

Regards,

Glen