Summary-sendmail traceback

From: Vishwanath PB (
Date: Wed Apr 14 1999 - 11:04:15 CDT

Hi Folks,
Thanks all of you for your quick response. I got the solution.

My Sincere thanks to
(1)Otto, Doug <>
(3)Larry Chin <

Original Question:
How do I trace back and find out who is the actual sender in the
following command.
/usr/lib/sendmail -f <sender's address> -d <destination address>


you should be able to expose the full headers of the mail message
something along the path the mail took stripped them off ) and see the
entire path used from source to destination

for instance I sent this using sendmail -f -d
you'll notice the Received: line actually shows larry@localhost

>From Wed Apr 14 10:24:29 1999
Received: from smtpserver (server [])
Received: (from larry@localhost)
        for; Wed, 14 Apr 1999 10:22:43 -0400 (EDT)
Date: Wed, 14 Apr 1999 10:22:43 -0400 (EDT)
Message-Id: <>
X-Authentication-Warning: larry set sender to using -f



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