OT: DNS problems

[Venkata Achanta]

named is running and responding but for some reason its not resolving that 
barwol.com domain while the rest of the machines can.

i changed /etc/resolv.conf to use to known good DNS servers and i am able 
to resolve that domain now

but still

Oct 14 11:22:12 asav sendmail[23818]: j9EILqQj023818: ruleset=check_mail, 
arg1=<dkatz at barwol.com>, relay=smtp.barwol.com [38.118.132.70] (may be 
forged), reject=451 4.1.8 Domain of sender address dkatz at barwol.com does 
not resolve
Oct 14 11:22:12 asav sendmail[23818]: j9EILqQj023818: 
from=<dkatz at barwol.com>, size=1058, class=0, nrcpts=0, proto=ESMTP, 
daemon=MTA, relay=smtp.barwol.com [38.118.132.70] (may be forged)

is something going on with sendmail then ?

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