Sendmail won't send back bogus mail to user

[Paul A. Orphanos]

Hi folks,
   I've had this persistent small problem with Sendmail on our system.
We got the one from Berkeley, and set it up with no problems.
Everything seems to work fine except for one thing. When a local user
addresses a message, and mistypes the address (causing a nslookup
failure), the message just sits in the mail queue, and is not sent
back to the user. So what I do now is look at the queue, and if
there's a bad message, I delete it and send the text back to the user,
telling him it was a bad address.  Otherwise, he/she'd never know.
   The sendmail.cf file seems to be ok (as far as I can tell, which
probably is'nt much), and I'm wondering if any of you have run into
this. Am I missing something from my .cf file? Any help would be
greatly appreciated.

Thanks Alot,
Paul

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Paul A. Orphanos                   Internet: porphano at hobbes.sfc.lehigh.edu
Microelectronics Laboratory        Bitnet:   pao0 at lehigh.bitnet
Lehigh University          
Bethlehem, Pa.

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Paul A. Orphanos                   Internet: porphano at hobbes.sfc.lehigh.edu
Microelectronics Laboratory        Bitnet:   pao0 at lehigh.bitnet
Lehigh University